CA3081597A1 - Synergistic disinfectant compositions having enhanced antimicrobial efficacy and stability, and methods of using the same - Google Patents
Synergistic disinfectant compositions having enhanced antimicrobial efficacy and stability, and methods of using the same Download PDFInfo
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- CA3081597A1 CA3081597A1 CA3081597A CA3081597A CA3081597A1 CA 3081597 A1 CA3081597 A1 CA 3081597A1 CA 3081597 A CA3081597 A CA 3081597A CA 3081597 A CA3081597 A CA 3081597A CA 3081597 A1 CA3081597 A1 CA 3081597A1
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- 239000000645 desinfectant Substances 0.000 title claims abstract description 109
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- 229940066842 petrolatum Drugs 0.000 description 1
- 229940057874 phenyl trimethicone Drugs 0.000 description 1
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000004224 potassium gluconate Substances 0.000 description 1
- 235000013926 potassium gluconate Nutrition 0.000 description 1
- 229960003189 potassium gluconate Drugs 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- YQZZXXKFKTWDPY-UHFFFAOYSA-N propan-2-yl benzenesulfonate Chemical class CC(C)OS(=O)(=O)C1=CC=CC=C1 YQZZXXKFKTWDPY-UHFFFAOYSA-N 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 239000004405 propyl p-hydroxybenzoate Substances 0.000 description 1
- 235000010232 propyl p-hydroxybenzoate Nutrition 0.000 description 1
- 229960003415 propylparaben Drugs 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 235000020944 retinol Nutrition 0.000 description 1
- 239000011607 retinol Substances 0.000 description 1
- 229960003471 retinol Drugs 0.000 description 1
- 238000011012 sanitization Methods 0.000 description 1
- 229940057910 shea butter Drugs 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 230000008591 skin barrier function Effects 0.000 description 1
- 230000036559 skin health Effects 0.000 description 1
- QWUGHVPEJCWESO-UHFFFAOYSA-M sodium 2-amino-3-dodecanoyloxy-3-oxopropanoate Chemical compound NC(C(=O)OC(CCCCCCCCCCC)=O)C(=O)[O-].[Na+] QWUGHVPEJCWESO-UHFFFAOYSA-M 0.000 description 1
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000011083 sodium citrates Nutrition 0.000 description 1
- 229940079776 sodium cocoyl isethionate Drugs 0.000 description 1
- 229940079842 sodium cumenesulfonate Drugs 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 239000000176 sodium gluconate Substances 0.000 description 1
- 235000012207 sodium gluconate Nutrition 0.000 description 1
- 229940005574 sodium gluconate Drugs 0.000 description 1
- 229940057950 sodium laureth sulfate Drugs 0.000 description 1
- 229940078455 sodium lauroyl aspartate Drugs 0.000 description 1
- 229940048106 sodium lauroyl isethionate Drugs 0.000 description 1
- 239000011684 sodium molybdate Substances 0.000 description 1
- 235000015393 sodium molybdate Nutrition 0.000 description 1
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 description 1
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- IWIUXJGIDSGWDN-UQKRIMTDSA-M sodium;(2s)-2-(dodecanoylamino)pentanedioate;hydron Chemical compound [Na+].CCCCCCCCCCCC(=O)N[C@H](C([O-])=O)CCC(O)=O IWIUXJGIDSGWDN-UQKRIMTDSA-M 0.000 description 1
- IEXXLSKKBWIDAC-ZOWNYOTGSA-M sodium;(3s)-3-(dodecanoylamino)-4-hydroxy-4-oxobutanoate Chemical compound [Na+].CCCCCCCCCCCC(=O)N[C@H](C([O-])=O)CC(O)=O IEXXLSKKBWIDAC-ZOWNYOTGSA-M 0.000 description 1
- SXHLENDCVBIJFO-UHFFFAOYSA-M sodium;2-[2-(2-dodecoxyethoxy)ethoxy]ethyl sulfate Chemical compound [Na+].CCCCCCCCCCCCOCCOCCOCCOS([O-])(=O)=O SXHLENDCVBIJFO-UHFFFAOYSA-M 0.000 description 1
- BRMSVEGRHOZCAM-UHFFFAOYSA-M sodium;2-dodecanoyloxyethanesulfonate Chemical compound [Na+].CCCCCCCCCCCC(=O)OCCS([O-])(=O)=O BRMSVEGRHOZCAM-UHFFFAOYSA-M 0.000 description 1
- SZHIIIPPJJXYRY-UHFFFAOYSA-M sodium;2-methylprop-2-ene-1-sulfonate Chemical compound [Na+].CC(=C)CS([O-])(=O)=O SZHIIIPPJJXYRY-UHFFFAOYSA-M 0.000 description 1
- MNCGMVDMOKPCSQ-UHFFFAOYSA-M sodium;2-phenylethenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C=CC1=CC=CC=C1 MNCGMVDMOKPCSQ-UHFFFAOYSA-M 0.000 description 1
- QEKATQBVVAZOAY-UHFFFAOYSA-M sodium;4-propan-2-ylbenzenesulfonate Chemical compound [Na+].CC(C)C1=CC=C(S([O-])(=O)=O)C=C1 QEKATQBVVAZOAY-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229960002920 sorbitol Drugs 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 229940012831 stearyl alcohol Drugs 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229940105956 tea-dodecylbenzenesulfonate Drugs 0.000 description 1
- OPQYOFWUFGEMRZ-UHFFFAOYSA-N tert-butyl 2,2-dimethylpropaneperoxoate Chemical compound CC(C)(C)OOC(=O)C(C)(C)C OPQYOFWUFGEMRZ-UHFFFAOYSA-N 0.000 description 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- DZKXJUASMGQEMA-UHFFFAOYSA-N tetradecyl tetradecanoate Chemical compound CCCCCCCCCCCCCCOC(=O)CCCCCCCCCCCCC DZKXJUASMGQEMA-UHFFFAOYSA-N 0.000 description 1
- LBLYYCQCTBFVLH-UHFFFAOYSA-M toluenesulfonate group Chemical class C=1(C(=CC=CC1)S(=O)(=O)[O-])C LBLYYCQCTBFVLH-UHFFFAOYSA-M 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 229940087291 tridecyl alcohol Drugs 0.000 description 1
- GVPDNFYOFKBFEN-UHFFFAOYSA-N trimethyl(octadecoxy)silane Chemical compound CCCCCCCCCCCCCCCCCCO[Si](C)(C)C GVPDNFYOFKBFEN-UHFFFAOYSA-N 0.000 description 1
- LINXHFKHZLOLEI-UHFFFAOYSA-N trimethyl-[phenyl-bis(trimethylsilyloxy)silyl]oxysilane Chemical compound C[Si](C)(C)O[Si](O[Si](C)(C)C)(O[Si](C)(C)C)C1=CC=CC=C1 LINXHFKHZLOLEI-UHFFFAOYSA-N 0.000 description 1
- 229940113164 trimyristin Drugs 0.000 description 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 1
- 235000019801 trisodium phosphate Nutrition 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 229940046009 vitamin E Drugs 0.000 description 1
- 235000019165 vitamin E Nutrition 0.000 description 1
- 239000011709 vitamin E Substances 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 229940071104 xylenesulfonate Drugs 0.000 description 1
- GDJZZWYLFXAGFH-UHFFFAOYSA-M xylenesulfonate group Chemical group C1(C(C=CC=C1)C)(C)S(=O)(=O)[O-] GDJZZWYLFXAGFH-UHFFFAOYSA-M 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
- A01N37/20—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof containing the group, wherein Cn means a carbon skeleton not containing a ring; Thio analogues thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/02—Saturated carboxylic acids or thio analogues thereof; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/30—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests characterised by the surfactants
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
- A01N31/02—Acyclic compounds
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/02—Saturated carboxylic acids or thio analogues thereof; Derivatives thereof
- A01N37/04—Saturated carboxylic acids or thio analogues thereof; Derivatives thereof polybasic
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
- A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
- A01N41/04—Sulfonic acids; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
Abstract
A synergistic disinfectant composition comprises a C1-8 organic acid, an amino acid based surfactant, an anionic surfactant, and a stabilizing agent. The C1-8 organic acid may include two or more types of the C1-8 organic acids with at least one of the C1-8 organic acids is alpha hydroxyl acid. The disinfectant composition has an antimicrobial activity of log reduction of at least 2 under Biocidal Product Registration (BPR) standard EN13727, EN1276, EN13624 or EN1499, and/or the EPA standard that applies the "Quantitative Methods for Evaluating the Activity of Microbicides used on Hard, Non-Porous Surface"
issued by the Organisation for Economic Co-operation and Development (OECD). In addition, the disinfectant composition may be stable during storage and retain their antimicrobial activity after at least one month at 40 °C. When desired, the synergistic disinfectant composition may further comprise an oxidizing agent.
issued by the Organisation for Economic Co-operation and Development (OECD). In addition, the disinfectant composition may be stable during storage and retain their antimicrobial activity after at least one month at 40 °C. When desired, the synergistic disinfectant composition may further comprise an oxidizing agent.
Description
SYNERGISTIC DISINFECTANT COMPOSITIONS HAVING ENHANCED
ANTIMICROBIAL EFFICACY AND STABILITY, AND METHODS OF USING THE SAME
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority to U.S. Provisional Application No.
62/786176, filed on December 28, 2018, and U.S. Provisional Application No. 62/923,650, filed October 21, 2019.
TECHNICAL FIELD
ANTIMICROBIAL EFFICACY AND STABILITY, AND METHODS OF USING THE SAME
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority to U.S. Provisional Application No.
62/786176, filed on December 28, 2018, and U.S. Provisional Application No. 62/923,650, filed October 21, 2019.
TECHNICAL FIELD
[0002] This disclosure relates to disinfectant compositions useful in institutional and healthcare applications.
BACKGROUND
BACKGROUND
[0003] Conventional antimicrobial compositions typically used in liquid disinfectant often present limitations in reaching antimicrobial efficacies at the permitted levels. In addition, many of the compositions pose formulation stability challenges, especially when the concentrations of active ingredients are increased in order to achieve higher antimicrobial efficacy. This may result in unsatisfactory shelf life of the disinfectant compositions, as well as potential hazards under regular storage and use conditions. Some conventional liquid disinfectants purportedly contain both antimicrobial efficacy and biodegradability by using plant origin raw materials. These products, however, do not meet the expectations for desired product attributes (such as foaming profile) observed in commercial non-green, synthetic compositions. Further, biodegradable and plant origin raw materials often produce negative olfactory aspects (such as unpleasant odor) in conventional disinfectant products, causing unsatisfactory user experience and reducing the actual use of these products.
[0004] Therefore, there is a need for liquid disinfectant compositions that have one or more of enhanced antimicrobial efficacy, longer shelf life, improved stability, biodegradability, satisfactory foaming profile, improved olfactory aspects, and safer for consumer use.
SUMMARY
SUMMARY
[0005] In one aspect, a synergistic disinfectant composition is provided that may comprise about 0.1% to about 25.0% by weight of a C1-8 organic acid, about 0.1% to about 20.0% by weight of an amino acid based surfactant, about 0.1% to about 20.0%
by weight of an anionic surfactant, about 0.05% to about 20.0% by weight of a stabilizing agent, all based on total weight of the composition. Optionally, the disinfectant composition may comprise about 0.01% to about 5.0% by weight of an oxidizing agent based on total weight Date Recue/Date Received 2020-09-17 of the composition. In certain embodiments, the C1-8 organic acid comprises two or more types of C1-8 organic acids. In further embodiments, the C1-8 organic acid comprises an alpha hydroxyl acid.
by weight of an anionic surfactant, about 0.05% to about 20.0% by weight of a stabilizing agent, all based on total weight of the composition. Optionally, the disinfectant composition may comprise about 0.01% to about 5.0% by weight of an oxidizing agent based on total weight Date Recue/Date Received 2020-09-17 of the composition. In certain embodiments, the C1-8 organic acid comprises two or more types of C1-8 organic acids. In further embodiments, the C1-8 organic acid comprises an alpha hydroxyl acid.
[0006] In another aspect, a synergistic disinfectant composition is provided that may comprise a C1-8 organic acid; an amino acid based surfactant; a stabilizing agent; and an anionic surfactant, wherein the disinfectant composition has an antimicrobial activity of log reduction of at least 2 under European standards to chemical disinfectants and antiseptics EN13727, EN1276 or EN1499 or other similar methodologies recognized under the biocidal product regulation (BPR regulation (EN)528 (2010), and/or the United States Environmental Protection Agency (EPA) standard that applies the "Quantitative Methods for Evaluating the Activity of Microbicides used on Hard, Non-Porous Surface" issued by the Organisation for Economic Co-operation and Development (OECD). Optionally, the disinfectant composition may further comprise an oxidizing agent. Furthermore, the disinfectant composition has substantially the same antimicrobial activity after at least one month at 40 C storage.
[0007] In yet another aspect, a method of disinfecting a surface is provided.
The method may comprise applying a synergistic disinfectant composition as disclosed herein to the surface.
The method may comprise applying a synergistic disinfectant composition as disclosed herein to the surface.
[0008] Other aspects of the disclosure will become apparent by consideration of the detailed description.
DETAILED DESCRIPTION
DETAILED DESCRIPTION
[0009] The present disclosure generally relates to a synergistic disinfectant composition, in which the antimicrobial efficacy may be enhanced through the synergy between C1-8 organic acids and amino-acid based surfactants. The disclosed synergistic compositions may include a stabilizing agent to achieve the stability with desired shelf life and to maintain the antimicrobial activity for at least one month after being stored at 40 C. In addition, the antimicrobial efficacy of the disclosed disinfectant composition may further be enhanced through the synergistic effect between the organic acid and the stabilizing agent.
[0010] The terms "comprise(s)," "comprising," "include(s)," "including,"
"having,"
"has," "contain(s)," "containing," and variants thereof, as used herein, are open-ended transitional phrases, terms, or words that are meant to encompass the items listed thereafter and equivalents thereof as well as additional items. The singular forms "a", "and", and "the"
include plural references unless the context clearly dictates otherwise. Where the term "comprising" is used, the present disclosure also contemplates other embodiments "comprising", "consisting of", or "consisting essentially of" elements presented herein, Date Recue/Date Received 2020-09-17 whether explicitly set forth or not.
"having,"
"has," "contain(s)," "containing," and variants thereof, as used herein, are open-ended transitional phrases, terms, or words that are meant to encompass the items listed thereafter and equivalents thereof as well as additional items. The singular forms "a", "and", and "the"
include plural references unless the context clearly dictates otherwise. Where the term "comprising" is used, the present disclosure also contemplates other embodiments "comprising", "consisting of", or "consisting essentially of" elements presented herein, Date Recue/Date Received 2020-09-17 whether explicitly set forth or not.
[0011] Any numerical range recited herein includes all values from the lower value to the upper value. For example, if a concentration range is stated as 1% to 50%, it is intended that values such as 2% to 40%, 10% to 30%, or 1% to 3%, etc., are expressly enumerated in this specification. These are only examples of what is specifically intended, and all possible combinations of numerical values between and including the lowest value and the highest value enumerated are to be considered to be expressly stated in this application.
[0012] The modifier "about" used in connection with a quantity is inclusive of the stated value and has the meaning dictated by the context (for example, it includes at least the degree of error associated with the measurement of the particular quantity). The modifier "about" should also be considered as disclosing the range defined by the absolute values of the two endpoints. For example, the expression "from about 2 to about 4" also discloses the range "from 2 to 4." The term "about" may refer to plus or minus 10% of the indicated number. For example, "about 10%" may indicate a range of 9% to 11%, and "about 1" may mean from 0.9-1.1. Other meanings of "about" may be apparent from the context, such as rounding off, so, for example "about 1" may also mean from 0.5 to 1.4.
[0013] In general, the amount of a component in a composition as disclosed herein is expressed "by weight" which refers to the percentage of the component's weight in the total weight of the composition. Unless indicated otherwise, all concentrations are expressed as weight percentage concentrations.
[0014] The term "effective amount" refers to an amount effective that would achieve a desired effect or result. For example, an effective amount of a disinfectant composition may refer to the amount of such composition to achieve a level of antimicrobial activity, which can be measured with a standardized test known in the art. An effective amount of a disinfectant composition may be determined by known methods and may vary according to factors such as the microbial strains, test media, temperature, and other conditions.
[0015] The term "substantially the same antimicrobial activity" means that the antimicrobial activity is within at least 80%, preferably at least 90%, with respect to the reference antimicrobial activity.
[0016] The term "substantially free", "free", "substantially no", or "no"
refers to a disinfectant composition that does not contain a particular compound, or to which a particular compound has not been added to the disinfectant composition. Should the particular compound be present through contamination, the amount of such particular compound shall be less than 0.5% by weight, preferably less than 0.1% by weight.
refers to a disinfectant composition that does not contain a particular compound, or to which a particular compound has not been added to the disinfectant composition. Should the particular compound be present through contamination, the amount of such particular compound shall be less than 0.5% by weight, preferably less than 0.1% by weight.
[0017] Definitions of specific functional groups and chemical terms are described in Date Recue/Date Received 2020-09-17 more detail below. For purposes of this disclosure, the chemical elements are identified in accordance with the Periodic Table of the Elements, CAS version, Handbook of Chemistry and Physics, 75th to --.., inside cover, and specific functional groups are generally defined as described therein. Additionally, general principles of organic chemistry, as well as specific functional moieties and reactivity, are described in Organic Chemistry, Thomas Sorrell, University Science Books, Sausalito, 1999; Smith and March March's Advanced Organic Chemistry, 5th Edition, John Wiley 8i, Sons, Inc., New York, 2001; Larock, Comprehensive Organic Transformations, VCH Publishers, Inc., New York, 1989; Carruthers, Some Modern Methods of Organic Synthesis, 3' Edition, Cambridge University Press, Cambridge, 1987; the entire contents of each of which are incorporated herein by reference.
[0018] The disclosed disinfectant composition may comprise a C1-8 organic acid, an amino acid based surfactant, an anionic surfactant, a stabilizing agent, and optionally an oxidizing agent.
[0019] C1-8 Organic Acid
[0020] The term "C1-8 organic acid" as used herein refers to a carboxylic acids having 1-8 carbon atoms and one or more carboxy (¨COON) groups. The organic acid may have 0, 1, 2, or 3 carbon-carbon double bonds. The organic acid may have a straight or branched carbon chain, a cyclic carbon ring, or an aromatic carbon ring. The organic acid may be unsubstituted or substituted with one or more substituent groups, each of which independently selected from hydroxy (¨OH), amino, cyano, halogen, thiol, oxo (=0), and thioxo (=S). Suitable C1-8 organic acids may include, but are not limited to, formic acid, acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, isovaleric acid, caproic acid, heptanoic acid, benzoic acid, salicylic acid, caprylic acid, or any combination thereof.
Furthermore, the "C1-8 organic acid" may include at least one alpha hydroxy acid containing 1-8 carbon atoms.
Furthermore, the "C1-8 organic acid" may include at least one alpha hydroxy acid containing 1-8 carbon atoms.
[0021] The term "alpha hydroxy acid" as used herein refers to a C1-8 organic acid, as defined herein, having a hydroxy group (¨OH) attached to a carbon atom adjacent to a carboxy (¨COON) group in the molecular structure. The alpha hydroxy acid may be natural or synthetic compound. Examples of suitable alpha hydroxy acids include, but are not limited to, lactic acid, formic acid, glycolic acid, citric acid, malic acid, mandelic acid, tartaric acid, or any combination thereof.
[0022] The disinfectant compositions disclosed herein may comprise about 0.1%
to about 50.0% by weight of a C1-8 organic acid. The compositions may comprise at least 0.1%, at least 0.3%, at least 0.5%, at least 1.0%, at least 2.0%, at least 3.0%, at least 4.0%, at least 5.0%, at least 6.0%, at least 7.0%, at least 8.0%, at least 9.0%, at least 10.0%, at least Date Recue/Date Received 2020-09-17 12.0%, at least 15.0%, at least 20.0%, at least 30.0%, or at least 40.0% by weight of a C1-8 organic acid; and/or the compositions may comprise less than 50.0%, less than 40.0%, less than 30.0%, less than 25.0%, less than 20.0%, less than 15.0%, less than 12.0%, less than 10.0%, less than 9.0%, less than 8.0%, less than 7.0%, less than 6.0%, less than 5.0%, less than 4.0%, less than 3.0%, less than 2.0%, or less than 1.0% by weight of a C1-8 organic acid. For example, the compositions may comprise about 0.1% to about 50.0%, about 0.1%
to about 40.0%, about 0.1% to about 30.0%, about 0.1% to about 25.0%, about 0.1% to about 20.0%, about 0.1% to about 15.0%, about 0.1% to about 10.0%, or about 0.1% to about 5.0% by weight of a C1-8 organic acid. The compositions may comprise about 0.5% to about 50.0%, about 0.5% to about 40.0%, about 0.5% to about 30.0%, about 0.5%
to about 25.0%, about 0.5% to about 20.0%, about 0.5% to about 15.0%, about 0.5% to about 10.0%, about 0.5% to about 5.0% by weight of a C1-8 organic acid. The compositions may comprise about 1.0% to about 50.0%, about 1.0% to about 40.0%, about 1.0% to about 30.0%, about 1.0% to about 25.0%, about 1.0% to about 20.0%, about 1.0% to about 15.0%, about 1.0% to about 12.0%, about 1.0% to about 10.0%, about 1.0% to about 8.0%, about 1.0% to about 6.0%, or about 1.0% to about 5.0% by weight of a C1-8 organic acid.
In some embodiments, the compositions comprise about 1.0% to about 25.0% by weight of a C1-8 organic acid. In particular embodiments, the compositions comprise about 0.5% to about 15.0% by weight, or about 1.0% to about 12.0% by weight of a C1-8 organic acid.
to about 50.0% by weight of a C1-8 organic acid. The compositions may comprise at least 0.1%, at least 0.3%, at least 0.5%, at least 1.0%, at least 2.0%, at least 3.0%, at least 4.0%, at least 5.0%, at least 6.0%, at least 7.0%, at least 8.0%, at least 9.0%, at least 10.0%, at least Date Recue/Date Received 2020-09-17 12.0%, at least 15.0%, at least 20.0%, at least 30.0%, or at least 40.0% by weight of a C1-8 organic acid; and/or the compositions may comprise less than 50.0%, less than 40.0%, less than 30.0%, less than 25.0%, less than 20.0%, less than 15.0%, less than 12.0%, less than 10.0%, less than 9.0%, less than 8.0%, less than 7.0%, less than 6.0%, less than 5.0%, less than 4.0%, less than 3.0%, less than 2.0%, or less than 1.0% by weight of a C1-8 organic acid. For example, the compositions may comprise about 0.1% to about 50.0%, about 0.1%
to about 40.0%, about 0.1% to about 30.0%, about 0.1% to about 25.0%, about 0.1% to about 20.0%, about 0.1% to about 15.0%, about 0.1% to about 10.0%, or about 0.1% to about 5.0% by weight of a C1-8 organic acid. The compositions may comprise about 0.5% to about 50.0%, about 0.5% to about 40.0%, about 0.5% to about 30.0%, about 0.5%
to about 25.0%, about 0.5% to about 20.0%, about 0.5% to about 15.0%, about 0.5% to about 10.0%, about 0.5% to about 5.0% by weight of a C1-8 organic acid. The compositions may comprise about 1.0% to about 50.0%, about 1.0% to about 40.0%, about 1.0% to about 30.0%, about 1.0% to about 25.0%, about 1.0% to about 20.0%, about 1.0% to about 15.0%, about 1.0% to about 12.0%, about 1.0% to about 10.0%, about 1.0% to about 8.0%, about 1.0% to about 6.0%, or about 1.0% to about 5.0% by weight of a C1-8 organic acid.
In some embodiments, the compositions comprise about 1.0% to about 25.0% by weight of a C1-8 organic acid. In particular embodiments, the compositions comprise about 0.5% to about 15.0% by weight, or about 1.0% to about 12.0% by weight of a C1-8 organic acid.
[0023] In some embodiments, the organic acid may comprise an alpha hydroxy acid.
The disinfectant compositions may comprise at least 0.05%, at least 0.1%, at least 0.2%, at least 0.5%, at least 1.0%, at least 2.0%, at least 3.0%, at least 4.0%, at least 5.0%, at least 6.0%, at least 7.0%, at least 8.0%, at least 9.0%, at least 10.0%, at least 11.0%, at least 12.0%, at least 13.0%, at least 14.0%, or at least 15.0% by weight of an alpha hydroxy acid;
and/or the compositions may comprise less than 20.0%, less than 15.0%, less than 14.0%, less than 13.0%, less than 12.0%, less than 11.0%, less than 10%, less than 9.0%, less than 8.0%, less than 7.0%, less than 6.0%, less than 5.0%, less than 4.0%, less than 3.0%, less than 2.0%, less than 1.0%, or less than 0.5% by weight of an alpha hydroxy acid. For example, the compositions may comprise about 0.05 % to about 20.0%, about 0.05 % to about 15.0%, about 0.05 % to about 14.0%, about 0.05 % to about 13.0%, about 0.05 % to about 12.0%, about 0.05 % to about 11.0%, about 0.05 % to about 10.0%, about 0.05% to about 9.0%, about 0.05% to about 8.0%, about 0.05% to about 7.0%, about 0.05%
to about 6.0%, about 0.05% to about 5.0%, about 0.05% to about 4.0%, about 0.05% to about 3.0%, about 0.05% to about 2.0%, or about 0.05% to about 1.0% by weight of an alpha hydroxy acid. The compositions may comprise about 0.1 % to about 20%, about 0.1 % to about Date Recue/Date Received 2020-09-17 15.0%, about 0.1 % to about 14.0%, about 0.1 % to about 13.0%, about 0.1 % to about 12.0%, about 0.1 % to about 11.0%, about 0.1 % to about 10.0%, about 0.1% to about 9.0%, about 0.1% to about 8.0%, about 0.1% to about 7.0%, about 0.1% to about 6.0%, about 0.1% to about 5.0%, about 0.1% to about 4.0%, about 0.1% to about 3.0%, about 0.1% to about 2.0%, or about 0.1% to about 1.0% by weight of an alpha hydroxy acid. The compositions may comprise about 0.2 % to about 20.0%, about 0.5% to about 20.0%, about 0.5 % to about 15.0%, about 0.5 % to about 14.0%, about 0.5 % to about 13.0%, about 0.5 % to about 12.0%, about 0.5 % to about 11.0%, about 0.5 % to about 10.0%, about 0.5%
to about 9.0%, about 0.5% to about 8.0%, about 0.5% to about 7.0%, about 0.5%
to about 6.0%, about 0.5% to about 5.0%, about 0.5% to about 4.0%, about 0.5% to about 3.0%, about 0.5% to about 2.0%, or about 0.5% to about 1.0% by weight of an alpha hydroxy acid.
In some embodiments, the compositions comprise about 0.05% to about 20.0% by weight, or about 0.05% to about 15.0% by weight of an alpha hydroxy acid. In particular embodiments, the compositions comprise about 0.05% to about 12.0% by weight of an alpha hydroxy acid.
The disinfectant compositions may comprise at least 0.05%, at least 0.1%, at least 0.2%, at least 0.5%, at least 1.0%, at least 2.0%, at least 3.0%, at least 4.0%, at least 5.0%, at least 6.0%, at least 7.0%, at least 8.0%, at least 9.0%, at least 10.0%, at least 11.0%, at least 12.0%, at least 13.0%, at least 14.0%, or at least 15.0% by weight of an alpha hydroxy acid;
and/or the compositions may comprise less than 20.0%, less than 15.0%, less than 14.0%, less than 13.0%, less than 12.0%, less than 11.0%, less than 10%, less than 9.0%, less than 8.0%, less than 7.0%, less than 6.0%, less than 5.0%, less than 4.0%, less than 3.0%, less than 2.0%, less than 1.0%, or less than 0.5% by weight of an alpha hydroxy acid. For example, the compositions may comprise about 0.05 % to about 20.0%, about 0.05 % to about 15.0%, about 0.05 % to about 14.0%, about 0.05 % to about 13.0%, about 0.05 % to about 12.0%, about 0.05 % to about 11.0%, about 0.05 % to about 10.0%, about 0.05% to about 9.0%, about 0.05% to about 8.0%, about 0.05% to about 7.0%, about 0.05%
to about 6.0%, about 0.05% to about 5.0%, about 0.05% to about 4.0%, about 0.05% to about 3.0%, about 0.05% to about 2.0%, or about 0.05% to about 1.0% by weight of an alpha hydroxy acid. The compositions may comprise about 0.1 % to about 20%, about 0.1 % to about Date Recue/Date Received 2020-09-17 15.0%, about 0.1 % to about 14.0%, about 0.1 % to about 13.0%, about 0.1 % to about 12.0%, about 0.1 % to about 11.0%, about 0.1 % to about 10.0%, about 0.1% to about 9.0%, about 0.1% to about 8.0%, about 0.1% to about 7.0%, about 0.1% to about 6.0%, about 0.1% to about 5.0%, about 0.1% to about 4.0%, about 0.1% to about 3.0%, about 0.1% to about 2.0%, or about 0.1% to about 1.0% by weight of an alpha hydroxy acid. The compositions may comprise about 0.2 % to about 20.0%, about 0.5% to about 20.0%, about 0.5 % to about 15.0%, about 0.5 % to about 14.0%, about 0.5 % to about 13.0%, about 0.5 % to about 12.0%, about 0.5 % to about 11.0%, about 0.5 % to about 10.0%, about 0.5%
to about 9.0%, about 0.5% to about 8.0%, about 0.5% to about 7.0%, about 0.5%
to about 6.0%, about 0.5% to about 5.0%, about 0.5% to about 4.0%, about 0.5% to about 3.0%, about 0.5% to about 2.0%, or about 0.5% to about 1.0% by weight of an alpha hydroxy acid.
In some embodiments, the compositions comprise about 0.05% to about 20.0% by weight, or about 0.05% to about 15.0% by weight of an alpha hydroxy acid. In particular embodiments, the compositions comprise about 0.05% to about 12.0% by weight of an alpha hydroxy acid.
[0024] In some embodiments, the disclosed disinfectant composition comprises a single types of C1-8 organic acid. In some embodiments, the disclosed disinfectant composition comprises two or more types of C1-8 organic acids, such as a mixture of lactic acid and formic acid. In some further embodiments, the disclosed disinfectant composition comprises two or more types of C1-8 organic acids wherein at least one of the C1-8 organic acids is alpha hydroxyl acid.
[0025] In some embodiments, the C1-8 organic acid comprises or consists of alpha hydroxyl acid. In some embodiments, the C1-8 organic acid is a mixture of at least one alpha hydroxy acid and at least one organic acid that does not contain an alpha hydroxyl group, such as formic acid or acetic acid. For example, the compositions as disclosed herein may comprise about 0.1% to about 25.0% by weight of C1-8 organic acid, which includes about 0.05% to about 15.0% by weight of an alpha hydroxy acid and at least one organic acid that does not contain an alpha hydroxy group.
[0026] Amino Acid Based Surfactant
[0027] The term "amino acid based surfactant" as used herein refers to a chemical compound derived from a natural or synthetic amino acid molecule and having surfactant properties. The amino acid based surfactants include fatty acid derivatives of amino acids, or salts thereof, in which a fatty acid is attached to the amino acid through condensation of a carboxy group (-COOH) of the fatty acid and an amino group (-NH2) of the amino acid to form an amide bond (-CONH-). Suitable amino acids may include, but are not limited to, glycine, Date Recue/Date Received 2020-09-17 lysine, sarcosine, glutamic acid, aspartic acid, aminomalonic acid, or any combination thereof.
Suitable fatty acids may include a C10-24 fatty acid, such as C12-20 or C12-18 fatty acids.
Suitable fatty acids may include a C10-24 fatty acid, such as C12-20 or C12-18 fatty acids.
[0028] The term "C10-24 fatty acid" as used herein refers to a carboxylic acids having 1-8 carbon atoms. The carboxylic acid may have from 0 to 8 carbon-carbon double bonds. The carboxylic acid may have a straight or branched carbon chain, a cyclic carbon ring, or an aromatic carbon ring. The carboxylic acid may be unsubstituted or substituted with one or more substituent groups, each of which independently selected from hydroxy (¨OH), amino, cyano, halogen, thiol, oxo (=0), and thioxo (=S). Examples of suitable C10-24 fatty acids may include, but are not limited to, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, myristoleic acid, oleic aicd, linoleic acid, eruic acid, docosahexanoic acid, or any combination thereof.
[0029] In some embodiments, the amino acid based surfactant may comprise a C10-24 fatty acid derivative of amino acid. In some further embodiments, the amino acid based surfactant may comprise a C10-24 fatty acid derivative of amino acid, wherein the amino acid comprises glycine, sarcosine, glutamic acid, aspartic acid, aminomalonic acid, or combinations thereof.
[0030] Suitable amino acid based surfactants may include, but are not limited to, sodium lauroyl sarcosinate, sodium lauroyl glycinate, sodium lauroyl aminomalonate, sodium lauroyl aspartate, sodium N-lauroylglutamate, sodium cocoyl glutamate, or combinations thereof. Commercial examples of amino acid based surfactants include sarcosinates marketed under the tradenames Perlastan (Schill+Seilacher GmbH), Maprosyl (Stepan Company, USA), Crodasinic (Croda, UK), Oramix (Seppic, France), and acylglutamate products7 marketed as Amisoft- (Ajinomoto Corp., Japan).
[0031] The disinfectant compositions may comprise at least 0.1%, at least 0.2%, at least 0.4%, at least 0.6%, at least 0.8%, at least 1.0%, at least 2.0%, at least 2.5%, at least 3.0%, at least 3.5%, at least 4.0%, at least 4.5%, at least 5.0%, at least 6.0%, at least 7.0%, at least 8.0%, at least 9.0%, at least 10.0%, at least 12.0%, at least 15.0%, at least 20.0%, or at least 25.0% by weight of an amino acid based surfactant; and/or the compositions may comprise less than 30.0%, less than 25.0%, less than 20.0%, less than 15.0%, less than 12.0%, less than 10.0%, less than 9.0%, less than 8.0%, less than 7.0%, less than 6.0%, less than 5.0%, less than 4.5%, less than 4.0%, less than 3.5%, less than 3.0%, less than 2.5%, less than 2.0%, less than 1.5%, less than 1.0%, less than 0.8%, less than 0.6%, less than 0.4 /0, or less than 0.2% by weight of an amino acid based surfactant.
For example, the compositions may comprise about 0.1% to about 30.0%, about 0.1% to about 25.0%, about 0.1% to about 20.0%, about 0.1% to about 15.0%, about 0.1% to about 10.0%, about 0.1 Date Recue/Date Received 2020-09-17 to about 8.0%, about 0.1% to about 6.0%, about 0.1% to about 5.0%, about 0.1%
to about 4.0%, about 0.1% to about 3.0%, about 0.1% to about 2.0%, or about 0.1% to about 1.0%
by weight of an amino acid based surfactant. In some embodiments, the compositions comprise about 0.1% to about 20.0% by weight of an amino acid based surfactant. In particular embodiments, the compositions comprise about 0.2% to about 10.0% by weight, or about 0.2% to about 3.0% by weight of an amino acid based surfactant.
For example, the compositions may comprise about 0.1% to about 30.0%, about 0.1% to about 25.0%, about 0.1% to about 20.0%, about 0.1% to about 15.0%, about 0.1% to about 10.0%, about 0.1 Date Recue/Date Received 2020-09-17 to about 8.0%, about 0.1% to about 6.0%, about 0.1% to about 5.0%, about 0.1%
to about 4.0%, about 0.1% to about 3.0%, about 0.1% to about 2.0%, or about 0.1% to about 1.0%
by weight of an amino acid based surfactant. In some embodiments, the compositions comprise about 0.1% to about 20.0% by weight of an amino acid based surfactant. In particular embodiments, the compositions comprise about 0.2% to about 10.0% by weight, or about 0.2% to about 3.0% by weight of an amino acid based surfactant.
[0032] Stabilizing Agent
[0033] The term "stabilizing agent" as used herein refers to an agent that may help maintain the physical and chemical properties of the compositions disclosed herein. Suitable stabilizing agent for use in the disclosed disinfectant compositions may include, but are not limited to, C1-6 alcohol, glycerol, polyol, glycol ether, or any combination thereof. Non-limiting examples of the C1-6 alcohols include methanol, ethanol, propanol, isopropanol, 1-butanol, 1-pentanol, 2-pentanol, 1-hexanol, 2-hexanol, or any combination thereof. Non-limiting examples of the polyols include alkane polyols having from 2-6 carbon atoms and from 2-3 hydroxyls in the molecule. Non-limiting examples of the polyhydric alcohols include ethylene glycol, propylene glycol, dipropylene glycol, glycerin, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 2,3-butanediol, 1,2-propanediol, 1,5-pentanediol, meso-erythritol, neopentyl glycol, pentaerythritol, or any combination thereof. Examples of the glycol ethers include, but are not limited to, those based on ethylene or propylene glycol such as diethylene glycol ethyl ether, dipropylene glycol methyl ether, diethylene glycol methyl ether, diethylene glycol propyl ether, diethylene glycol butyl ether, ethylene/diethylene glycol 2-ethylhexyl ether, ethylene glycol phenyl ether, dipropylene glycol propyl ether, dipropylene glycol butyl ether, propylene glycol phenyl ether, or any combination thereof.
[0034] In some embodiments of the present disclosure, the disinfectant composition is substantially free of aromatic alcohol, e.g., benzyl alcohol.
[0035] The compositions may comprise at least 0.05%, at least 0.1%, at least 0.2%, at least 0.5%, at least 1.0%, at least 2.0%, at least 3.0%, at least 4.0%, at least 5.0%, at least 6.0%, at least 7.0%, at least 8.0%, at least 9.0%, at least 10.0%, at least 12.0%, at least 15.0%, at least 20.0%, or at least 25.0% by weight of a stabilizing agent; and/or thecompositions may comprise less than 30.0%, less than 25.0%, less than 20.0%, less than 15.0%, less than 12.0%, less than 10.0%, less than 9.0%, less than 8.0%, less than 7.0%, less than 6.0%, less than 5.0%, less than 4.0%, less than 3.0%, less than 2.0%, less than 1.0%, less than 0.5%, less than 0.2%, or less than 0.1% by weight of a stabilizing agent. For example, the composition may comprise about 0.05% to about 30.0%, about 0.05%
to about 25.0%, about 0.05% to about 20.0%, about 0.05% to about 15.0%, about 0.05% to about Date Recue/Date Received 2020-09-17 10.0%, about 0.05% to about 8.0%, about 0.05% to about 6.0%, about 0.05% to about 4.0%, about 0.05% to about 2.0%, or about 0.05% to about 1.0% by weight of a stabilizing agent. In some embodiments, the compositions comprise about 0.1% to about 20.0% by weight of a stabilizing agent. In particular embodiments, the compositions comprise about 1.0% to about 10.0% by weight, or about 1.0% to about 6.0% by weight of a stabilizing agent.
to about 25.0%, about 0.05% to about 20.0%, about 0.05% to about 15.0%, about 0.05% to about Date Recue/Date Received 2020-09-17 10.0%, about 0.05% to about 8.0%, about 0.05% to about 6.0%, about 0.05% to about 4.0%, about 0.05% to about 2.0%, or about 0.05% to about 1.0% by weight of a stabilizing agent. In some embodiments, the compositions comprise about 0.1% to about 20.0% by weight of a stabilizing agent. In particular embodiments, the compositions comprise about 1.0% to about 10.0% by weight, or about 1.0% to about 6.0% by weight of a stabilizing agent.
[0036] Anionic Surfactant
[0037] Suitable anionic surfactants for use in the compositions may include, for example, alkyl sulfates, alkyl ether sulfates, alkyl aryl sulfonates, alpha-olefin sulfonates, alkali metal or ammonium salts of alkyl sulfates, alkali metal or ammonium salts of alkyl ether sulfates, alkyl phosphates, silicone phosphates, alkyl glyceryl sulfonates, alkyl sulfosuccinates, alkyl taurates, acyl taurates, sulfoacetates, alkyl phosphate esters, mono alkyl succinates, monoalkyl maleates, sulfoacetates, acyl isethionates, alkyl carboxylates, phosphate esters, sulfosuccinates (e.g., sodium dioctylsulfosuccinate), or any combination thereof. Non-limiting examples of anionic surfactants may include sodium lauryl sulfate, sodium lauryl ether sulfate, ammonium lauryl sulfosuccinate, ammonium lauryl sulfate, ammonium lauryl ether sulfate, sodium dodecylbenzene sulfonate, triethanolamine dodecyl benzene sulfonate, sodium cocoyl isethionate, sodium lauroyl isethionate, or any combination thereof.
[0038] In some embodiments, the disclosed disinfectant composition is substantially free of linear benzyl benzene sulfonate, e.g., such as dodecylbenzenesulfonic acid.
[0039] The compositions may comprise at least 0.1%, at least 0.2%, at least 0.4%, at least 0.6%, at least 0.8%, at least 1.0%, at least 2.0%, at least 2.5%, at least 3.0%, at least 3.5%, at least 4.0%, at least 4.5%, at least 5.0%, at least 6.0%, at least 7.0%, at least 8.0%, at least 9.0%, at least 10.0%, at least 12.0%, at least 15.0%, at least 20.0%, or at least 25.0% by weight of an anionic surfactant; and/or the compositions may comprise less than 30.0%, less than 25.0%, less than 20.0%, less than 15.0%, less than 12.0%, less than 10.0%, less than 9.0%, less than 8.0%, less than 7.0%, less than 6.0%, less than 5.0%, less than 4.5%, less than 4.0%, less than 3.5%, less than 3.0%, less than 2.5%, less than 2.0%, less than 1.5%, less than 1.0%, less than 0.8%, less than 0.6%, less than 0.4 %, or less than 0.2% by weight of an anionic surfactant. For example, the compositions may comprise about 0.1% to about 30.0%, about 0.1% to about 25.0%, about 0.1% to about 20.0%, about 0.1%
to about 15.0%, about 0.1% to about 10.0%, about 0.1 to about 8.0%, about 0.1%
to about 6.0%, about 0.1% to about 5.0%, about 0.1% to about 4.0%, about 0.1% to about 3.0%, about 0.1% to about 2.0%, or about 0.1% to about 1.0% by weight of an anionic surfactant.
In some embodiments, the compositions comprise about 0.1% to about 20.0% by weight of Date Recue/Date Received 2020-09-17 an anionic surfactant. In particular embodiments, the compositions comprise about 0.2% to about 10.0% by weight, or about 0.2% to about 6.0% by weight of an anionic surfactant.
to about 15.0%, about 0.1% to about 10.0%, about 0.1 to about 8.0%, about 0.1%
to about 6.0%, about 0.1% to about 5.0%, about 0.1% to about 4.0%, about 0.1% to about 3.0%, about 0.1% to about 2.0%, or about 0.1% to about 1.0% by weight of an anionic surfactant.
In some embodiments, the compositions comprise about 0.1% to about 20.0% by weight of Date Recue/Date Received 2020-09-17 an anionic surfactant. In particular embodiments, the compositions comprise about 0.2% to about 10.0% by weight, or about 0.2% to about 6.0% by weight of an anionic surfactant.
[0040] In some embodiments, the anionic surfactant may comprise an alkyl sulfate, an alkyl ether sulfate, or a combination thereof. Suitable alkyl sulfates include, for example, sodium or ammonium salts of C12-14 alcohol sulfate. Suitable alkyl ether sulfates include, for example, sodium or ammonium salts of C12-14 alcohol ethmlate sulfate.
[0041] The compositions may comprise at least 0.1%, at least 0.2%, at least 0.4%, at least 0.6%, at least 0.8%, at least 1.0%, at least 1.2%, at least 1.4%, at least 1.6%, at least 1.8%, at least 2.0%, at least 2.2%, at least 2.4%, at least 2.6%, at least 2.8%, at least 3.0%, at least 3.5%, at least 4.0%, at least 4.5%, at least 5.0%, at least 6.0%, at least 7.0%, at least 8.0%, at least 9.0%, at least 10.0%, at least 12.0%, or at least 14.0% by weight of an alkyl sulfate anionic surfactant; and /or the compositions may comprise less than 15.0%, less than 14.0%, less than 12.0%, less than 10.0%, less than 9.0%, less than 8.0%, less than 7.0%, less than 6.0%, less than 5.0%, less than 4.5%, less than 4.0%, less than 3.5%, less than 3.0%, less than 2.8%, less than 2.6%, less than 2.4%, less than 2.2%, less than 2.0%, less than 1.8%, less than 1.6%, less than 1.4%, less than 1.2%, less than 1.0%, less than 0.8%, less than 0.6%, less than 0.4 A), or less than 0.2% by weight of an alkyl sulfate anionic surfactant. For example, the compositions may comprise about 0.1% to about 15.0%, about 0.1% to about 12.0%, about 0.1% to about 10.0%, about 0.1% to about 9.0%, about 0.1 to about 8.0%, about 0.1% to about 7.0%, about 0.1% to about 6.0%, about 0.1% to about 5.0%, about 0.1% to about 4.0%, about 0.1% to about 3.0%, about 0.1% to about 2.5%, about 0.1% to about 2.0%, about 0.1% to about 1.5%, or about 0.1% to about 1.0% by weight of an alkyl sulfate anionic surfactant. In some embodiments, the compositions comprise about 0.2% to about 10.0% by weight or about 0.2% to about 3.0% by weight of an alkyl sulfate anionic surfactant.
[0042] The composition may comprise at least 0.1%, at least 0.2%, at least 0.4%, at least 0.6%, at least 0.8%, at least 1.0%, at least 1.2%, at least 1.4%, at least 1.6%, at least 1.8%, at least 2.0%, at least 2.2%, at least 2.4%, at least 2.6%, at least 2.8%, at least 3.0%, at least 3.5%, at least 4.0%, at least 4.5%, at least 5.0%, at least 6.0%, at least 7.0%, at least 8.0%, at least 9.0%, at least 10.0%, at least 12.0%, or at least 14.0% by weight of an alkyl ether sulfate anionic surfactant; and/or the compositions may comprise less than 15.0%, less than 14.0%, less than 12.0%, less than 10.0%, less than 9.0%, less than 8.0%, less than 7.0%, less than 6.0%, less than 5.0%, less than 4.5%, less than 4.0%, less than 3.5%, less than 3.0%, less than 2.8%, less than 2.6%, less than 2.4%, less than 2.2%, less than 2.0%, less than 1.8%, less than 1.6%, less than 1.4%, less than 1.2%, less than 1.0%, Date Recue/Date Received 2020-09-17 less than 0.8%, less than 0.6%, less than 0.4 %, or less than 0.2% by weight of an alkyl ether sulfate anionic surfactant. For example, the compositions may comprise about 0.1% to about 15.0%, about 0.1% to about 12.0%, about 0.1% to about 10.0%, about 0.1%
to about 9.0%, about 0.1 to about 8.0%, about 0.1% to about 7.0%, about 0.1% to about 6.0%, about 0.1% to about 5.0%, about 0.1% to about 4.0%, about 0.1% to about 3.0%, about 0.1% to about 2.5%, about 0.1% to about 2.0%, about 0.1% to about 1.5%, or about 0.1%
to about 1.0% by weight of an alkyl ether sulfate anionic surfactant. In some embodiments, the compositions comprise about 0.2% to about 10.0% by weight, or about 0.2%
to about 3.0% by weight of an alkyl ether sulfate anionic surfactant.
to about 9.0%, about 0.1 to about 8.0%, about 0.1% to about 7.0%, about 0.1% to about 6.0%, about 0.1% to about 5.0%, about 0.1% to about 4.0%, about 0.1% to about 3.0%, about 0.1% to about 2.5%, about 0.1% to about 2.0%, about 0.1% to about 1.5%, or about 0.1%
to about 1.0% by weight of an alkyl ether sulfate anionic surfactant. In some embodiments, the compositions comprise about 0.2% to about 10.0% by weight, or about 0.2%
to about 3.0% by weight of an alkyl ether sulfate anionic surfactant.
[0043] Oxidizing Agent
[0044] The compositions disclosed herein may optionally include an oxidizing agent.
Suitable oxidizing agents may include, for example, ammonium persulfate, sodium persulfate, potassium persulfate, hydrogen peroxide, tert-butyl hydroperoxide, cumene hydroperoxide, tertamyl hydroperoxide, tert-butylperpivalate, tert-butyl perbenzoate, benzoyl peroxide, peroxyacids (like peracetic acid), ozone, chlorine dioxide, or any combination thereof. In some embodiments, the oxidizing agent may be a peroxide such as hydrogen peroxide.
Suitable oxidizing agents may include, for example, ammonium persulfate, sodium persulfate, potassium persulfate, hydrogen peroxide, tert-butyl hydroperoxide, cumene hydroperoxide, tertamyl hydroperoxide, tert-butylperpivalate, tert-butyl perbenzoate, benzoyl peroxide, peroxyacids (like peracetic acid), ozone, chlorine dioxide, or any combination thereof. In some embodiments, the oxidizing agent may be a peroxide such as hydrogen peroxide.
[0045] The compositions may comprise at least 0.01%, at least 0.05%, at least 0.1%, at least 0.2%, at least 0.3%, at least 0.4%, at least 0.5%, at least 1.0 %, at least 2.0%, at least 3.0%, or at least 4.0% by weight of an oxidizing agent; and/or the compositions may comprise less than 5.0%, less than 4.0%, less than 3.0%, less than 2.0%, less than 1.5%, less than 1.0%, less than 0.5%, less than 0.4%, less than 0.3%, less than 0.2%, or less than 0.1% by weight of an oxidizing agent. For example, the compositions may comprise 0.01% to about 5.0%, about 0.01% to about 4.0%, about 0.01% to about 3.0%, about 0.01% to about 2.0%, about 0.01% to about 1.5%, about 0.01% to about 1.0%, about 0.01% to about 0.5%, about 0.01% to about 0.4%, about 0.01% to about 0.3%, about 0.01%
to about 0.2%, or about 0.01% to about 0.1% by weight of an oxidizing agent.
In some embodiments, the compositions comprise about 0.01% to about 1.5% by weight, or about 0.5% to about 1.5% by weight of an oxidizing agent.
to about 0.2%, or about 0.01% to about 0.1% by weight of an oxidizing agent.
In some embodiments, the compositions comprise about 0.01% to about 1.5% by weight, or about 0.5% to about 1.5% by weight of an oxidizing agent.
[0046] In some embodiments, the composition comprises an oxidizing agent and the oxidizing agent is peroxide, which is present at about 0.5% to about 1.5% by weight.
[0047] In some embodiments, the composition is substantially free of any oxidizing agent. In some embodiments, the composition includes the oxidizing agent in an amount of less than 0.005%, less than 0.001%, less than 0.0005%, or less than 0.0001% by weight.
[0048] In some embodiments, the compositions as disclosed herein have a pH of or less. The compositions may have a pH value of less than 4.5, less than 4.0, less than 3.5, Date Recue/Date Received 2020-09-17 less than 3.0, less than 2.5, less than 2.0, less than 1.5, or even less than 1.0; and/or the compositions may have a pH value of at least 0.1, at least 0.5, at least 1.0, at least 1.5, at least 2.0, at least 2.5, at least 3.0, at least 3.5, at least 4.0, or at least 4.5. In some embodiments, the pH is about 1.0 to about 3.0, including about 1.5 to about 3.0, about 2.0 to 3.0, about 2.1 to 3.0, about 2.2 to 3.0, about 2.2 to 3.0, about 2.3 to 3.0, about 2.4 to 3.0, or about 2.5 to 3Ø In particular embodiments, the pH is about 2.0 to about 3.0, including about 2.1 to about 2.9, about 2.2 to 2.8, or about 2.3 to 2.8.
[0049] The composition as disclosed herein may further include an effective amount of one or more additional ingredients selected from pH adjusting agents, buffering agents, nonionic surfactants, hydrotropes, corrosion inhibitors, sequestering agents, antimicrobial compounds, dyes, rheology modifiers, preservatives, moisturizing agents, emollients, or any combination thereof. The compositions may comprise about 0.01% to about 5.0%, such as about 0.01% to about 5.0%, about 0.01% to about 4.0%, about 0.01% to about 3.0%, about 0.01% to about 2.0%, about 0.01% to about 1.0%, about 0.01% to about 0.5%, or about 0.01% to about 0.1% by weight each of one or more of the additional ingredients.
[0050] Suitable pH adjusting agents include substances demonstrating an alkaline property or substances demonstrating an acidic property. Examples of substances demonstrating an alkaline property include, but are not limited to, alkali metal hydroxides such as sodium hydroxide and potassium hydroxide; carbonates such as sodium carbonate, sodium bicarbonate, and potassium carbonate; silicates such as sodium silicate and potassium silicate;
borates such as sodium borate; organic acid salts such as sodium citrate;
amines such as monoethanolamine and diethanolamine, and ammonia. Examples of substances that demonstrate an acidic property and used for pH adjustment include, but are not limited to, inorganic acids such as hydrochloric acid and sulfuric acid, or organic acids such as citric acid and acetic acid.
borates such as sodium borate; organic acid salts such as sodium citrate;
amines such as monoethanolamine and diethanolamine, and ammonia. Examples of substances that demonstrate an acidic property and used for pH adjustment include, but are not limited to, inorganic acids such as hydrochloric acid and sulfuric acid, or organic acids such as citric acid and acetic acid.
[0051] Suitable buffering agents may include, but are not limited to, phosphoric acid, monosodium phosphate, disodium phosphate, trisodium phosphate, citric acid and salts such as sodium citrate, benzoic acid, sodium benzoate, or any combination thereof.
[0052] Suitable nonionic surfactant may include, but are not limited to, ethylene oxide adducts of C8 to C22, preferably C8 to C16, more preferably C8 to C12 alcohols; ethylene oxide/ propylene oxide adducts of ethylene glycol; alkylene glycols; alkyl polyglucosides; or mixtures thereof. Non-limiting examples of suitable types of non-ionic surfactant include ethoxylates of alkyl polyethylene glycol ethers, polyalkylene glycol (e.g., 100% Breox FCC92), or alcohol alkoxylate EO/PO (e.g., Plurafac LF403). Exemplary alcohol ethoxylates include fatty alcohol ethoxylates, e.g., tridecyl alcohol alkoxylate, ethylene oxide adduct, alkyl phenol Date Recue/Date Received 2020-09-17 ethoxylates, or ethoxy/propoxy block surfactants. In some embodiments, the nonionic surfactant is alcohol ethoxylates, EO/PO block copolymers, alkyl polyglucosides, or any combination thereof.
[0053] Suitable hydrotropes may include, but are not limited to, benzene sulfonates, naphthalene sulfonates, alkyl benzene sulfonates, naphthalene sulfonates, alkyl sulfonates, alkyl sulfates, alkyl diphenyloxide disulfonates, or phosphate ester hydrotropes. Exemplary alkyl benzene sulfonates include, for example, isopropylbenzene sulfonates, xylene sulfonates, toluene sulfonates, cumene sulfonates, or mixtures any two or more thereof.
Exemplary alkyl sulfonates include hexyl sulfonates, octyl sulfonates, and hexyl/octyl sulfonates, or mixtures of any two or more thereof. In some embodiments, the hydrotrope comprises sodium xylene sulfonate, sodium cumene sulfonate, or combinations thereof.
Exemplary alkyl sulfonates include hexyl sulfonates, octyl sulfonates, and hexyl/octyl sulfonates, or mixtures of any two or more thereof. In some embodiments, the hydrotrope comprises sodium xylene sulfonate, sodium cumene sulfonate, or combinations thereof.
[0054] Suitable corrosion inhibitors may include, but are not limited to, triazoles such as benzotriazole, tolyltriazole, and mercaptobenzothiazole; gluconate salts such as sodium gluconate, potassium gluconate and ammonium gluconate; molybdate salts such as sodium molybdate, or any combination thereof.
[0055] Suitable sequestering agents may include, but are not limited to, various known phosphate and non-phosphate builder materials. Non-limiting examples of suitable non-phosphate agents include alkali metal citrates; carbonates; bicarbonates;
the salts of nitrilotriacetic acid (NTA), methylglycine diacetic acid (MGDA), or glutaric diacetic acid (GLDA);
polycarboxylates such as polymaleates, polyacetates, polyhydroxyacrylates, polyacrylate/
polymaleate and polyacrylate/polymethacrylate copolymers; zeolites, layered silica; or mixtures thereof. In some embodiments, the sequestering agent is selected from phosphates, NTA, EDTA, MGDA, GLDA, citrates, carbonates, bicarbonates, polyacrylate/polymaleate, or maleic anhydride/(meth)acrylic acid copolymers, e.g., Sokalan CP5 available from BASF.
the salts of nitrilotriacetic acid (NTA), methylglycine diacetic acid (MGDA), or glutaric diacetic acid (GLDA);
polycarboxylates such as polymaleates, polyacetates, polyhydroxyacrylates, polyacrylate/
polymaleate and polyacrylate/polymethacrylate copolymers; zeolites, layered silica; or mixtures thereof. In some embodiments, the sequestering agent is selected from phosphates, NTA, EDTA, MGDA, GLDA, citrates, carbonates, bicarbonates, polyacrylate/polymaleate, or maleic anhydride/(meth)acrylic acid copolymers, e.g., Sokalan CP5 available from BASF.
[0056] The sequestering agent herein may also include anti-scalants, such as polyacrylates of molecular weight from 1,000 to 400,000, examples of which are supplied by Rohm & Haas, BASF and Alco Corp., or polymers based on acrylic acid combined with other moieties. These include acrylic acid combined with maleic acid, such as Sokalan CP5 and CP7 supplied by BASF or Acusol 479N supplied by Rohm & Haas with methacrylic acid such as Colloid 226/35 supplied by Rhone-Poulenc; with phosphonate such as Casi 773 supplied by Buckman Laboratories; with maleic acid and vinyl acetate such as polymers supplied by HuIs;
with acrylamide; with sulfophenol methallyl ether such as Aquatreat AR 540 supplied by Alco;
with 2-acrylamido-2-methylpropane sulfonic acid such as Acumer 3100 supplied by Rohm &
Haas or such as K-775 supplied by Goodrich; with 2-acrylamido-2-methylpropane sulfonic acid and sodium styrene sulfonate such as K-798 supplied by Goodrich; with methyl methacrylate, Date Recue/Date Received 2020-09-17 sodium methallyl sulfonate and sulfophenol methallyl ether such as Alcosperse 240 supplied by Alco; polymaleates such as Belclene 200 supplied by FMC; polymethacrylates such as Tamol 850 from Rohm & Haas polyaspartates; ethylenediamine disuccinate; or organo polyphosphonic acids and their salts such as the sodium salts of aminotri(methylenephosphonic acid) and ethane-1-hydroxy-1,1-diphosphonic acid.
In some embodiments, the sequestering agent may be phosphate, phosphonates, EDTA, MGDA, GLDA, polyacrylates, or any combination thereof.
with acrylamide; with sulfophenol methallyl ether such as Aquatreat AR 540 supplied by Alco;
with 2-acrylamido-2-methylpropane sulfonic acid such as Acumer 3100 supplied by Rohm &
Haas or such as K-775 supplied by Goodrich; with 2-acrylamido-2-methylpropane sulfonic acid and sodium styrene sulfonate such as K-798 supplied by Goodrich; with methyl methacrylate, Date Recue/Date Received 2020-09-17 sodium methallyl sulfonate and sulfophenol methallyl ether such as Alcosperse 240 supplied by Alco; polymaleates such as Belclene 200 supplied by FMC; polymethacrylates such as Tamol 850 from Rohm & Haas polyaspartates; ethylenediamine disuccinate; or organo polyphosphonic acids and their salts such as the sodium salts of aminotri(methylenephosphonic acid) and ethane-1-hydroxy-1,1-diphosphonic acid.
In some embodiments, the sequestering agent may be phosphate, phosphonates, EDTA, MGDA, GLDA, polyacrylates, or any combination thereof.
[0057] Suitable antimicrobial compounds may include agents that can kill or otherwise inhibit the growth or proliferation of microbes including, for example, bacteria, viruses or fungi. Examples of antimicrobial compounds include, but are not limited to, quaternary ammonium salts, essential oils, antimicrobial pesticides, antibacterials, antivirals, or antiparasitics known in the art.
[0058] The compositions may contain dyes used in disinfectant products to visualize coverage or pH sensitive dyes such as thymolphthalein, bromothyol blue, and phenol phenolphthalein.
[0059] Suitable rheology modifiers may include, but are not limited to, water soluble cellulosic polymers such as hydroxyethyl cellulose or hydroxypropyl cellulose.
[0060] Preservatives may include, but are not limited to, antimicrobials, biocides, or salts. For example, preservatives may include, but are not limited to, KATHONTm Preservatives (mixtures including methylchloroisothiazolinone and methylisothiazolinone from Dow Chemical, Midland, Mich.); NEOLONE 950TM (methylisothiazolinone from Dow Chemical, Midland, Mich.); DMDM hydantoin (available as GLYDANTTm from Lonza, Allendale, N.J.);
iodopropynyl butylcarbamate; formaldehyde; benzoic esters (parabens), such as methylparaben, propylparaben, butylparaben, ethylparaben, isopropylparaben, isobutylparaben, benzylparaben; 2-bromo-2-nitropropane-1,3-diol; benzoic acid;
formic acid;
or those known to those skilled in the art.
iodopropynyl butylcarbamate; formaldehyde; benzoic esters (parabens), such as methylparaben, propylparaben, butylparaben, ethylparaben, isopropylparaben, isobutylparaben, benzylparaben; 2-bromo-2-nitropropane-1,3-diol; benzoic acid;
formic acid;
or those known to those skilled in the art.
[0061] The disclosed disinfectant compositions may include at least one skin conditioner such as an emollient, humectant, occlusive agent, or other moisturizing agent to provide moisturizing, skin softening, skin barrier maintenance, anti-irritation, or other skin health benefits. Some non-limiting examples of emollients include stearoxytrimethylsilane, alkyl benzoate, silicone oils, dimethicone, myristyl myristate, cetyl myristate, glyceryl dioleate, methyl laurate, PPG-9 laurate, octyl palmitate, lanolin, propylene glycol, glycerol, fatty acids, natural oils such as sunflower, almond, mineral, canola, sesame, soybean, wheat germ, corn, peanut and olive, isopropyl myristate, myristyl alcohol, aloe vera, hydrolyzed silk protein, Vitamin E, stearyl alcohol, isopropyl palmitate, sorbitol, amino acid complexes, or polyethylene Date Recue/Date Received 2020-09-17 glycol. Some nonlimiting examples of humectants include hydroxyethyl urea, agarose, arginine PCA, fructose, glucose, glutamic acid, glycerol, honey, lactose, maltose, propylene glycol, polyethylene glycol, sorbitol, or any mixtures thereof. Some non-limiting examples of occlusive agents include petrolatum, shea butter, alkyl dimethicones, avocado oil, balm mint oil, canola oil, cod liver oil, corn oil, methicone, mineral oil, olive oil, phenyl trimethicone, trimyristin, soybean oil, glycol distearate, stearyl stearate, synthetic wax, or mixtures thereof. Some non-limiting examples of other moisturizers include cholesterol, cystine, hyaluronic acid, keratin, lecithin, egg yolk, glycine, PPG-12, panthenol, retinol, vegetable oil, or any mixtures thereof.
Some non-limiting examples of anti-irritants include bisabolol or panthenol.
Some non-limiting examples of anti-irritants include bisabolol or panthenol.
[0062] In general, the disinfectant compositions as disclosed herein may be prepared by thoroughly mixing the ingredients at room temperature with a mixer or blender such that a homogeneous mixture is obtained. Commercially available ingredients are typically used without further purification or treatment. For liquid compositions, the ingredients may be dissolved in a solvent or liquid carrier (such as alcohol or water) to form a solution.
Individual ingredients may be added during the preparation process in any order.
Individual ingredients may be added during the preparation process in any order.
[0063] The disclosed disinfectant compositions may have antimicrobial activities measurable by assay methods known in the art, such as those described in "Guidance on the Biocidal Products Regulation, Volume II Efficacy - Assessment and Evaluation (Parts B+C)"
(version 3.0, April 2018) and "Performance Criteria - Overview of (EN) Standards, Test Conditions, and Pass Criteria" (Appendix 4, BPR Efficacy Working Group Document, March 2017), both available at European Chemical Agency (ECHA), the entire contents of each of which are incorporated herein by reference. In some embodiments, the disclosed compositions have an antimicrobial activity of log reduction of at least 2 under Biocidal Product Registration (BPR) standard EN13727, EN13624, or EN1499. For example, the antimicrobial activity may achieve a log reduction of at least 2.0, at least 2.5, at least 3.0, at least 3.5, at least 4.0, at least 4.5, at least 5.0, at least 5.5, or at least 6.0 under BPR standard EN13727, EN1276, EN13624, or EN1499. This includes an antimicrobial activity of log reduction of about 2.5, about 3.0, about 3.5, about 4.5, about 5.0, about 5.5, or about 6Ø The antimicrobial activity may be in the range of log reduction of about 2.0 to about 6.0, about 2.0 to about 5.0, about 2.0 to about 4.0, about 2.0 to about 3.0, about 3.0 to about 6.0, about 3.0 to about 5.0, about 3.0 to about 4.0, about 4.0 to about 6.0, or about 4.0 to about 5Ø In particular embodiments, the compositions have an antimicrobial activity of log reduction of at least 2.0, at least 3.0, or at least 4.0 under the BPR standard tests. Other suitable measurement standards for antimicrobial activity include those described in the regulatory guidelines of United States Environmental Protection Agency (EPA), such as the EPA standard that applies the Date Recue/Date Received 2020-09-17 "Quantitative Methods for Evaluating the Activity of Microbicides used on Hard, Non-Porous Surface" issued by the Organisation for Economic Co-operation and Development (OECD) (hereinafter "the OECD Quantitative Methods for Evaluating the Activity of Microbicides"), or "Series 810 - Product Performance Test Guidelines", as well as those required by the health agencies in other countries. The disclosed compositions may satisfy the BPR
standards, the EPA standard according to the OECD Quantitative Methods for Evaluating the Activity of Microbicides, and/or other standards intended to measure antimicrobial activity at a similar level using a similar testing procedure.
(version 3.0, April 2018) and "Performance Criteria - Overview of (EN) Standards, Test Conditions, and Pass Criteria" (Appendix 4, BPR Efficacy Working Group Document, March 2017), both available at European Chemical Agency (ECHA), the entire contents of each of which are incorporated herein by reference. In some embodiments, the disclosed compositions have an antimicrobial activity of log reduction of at least 2 under Biocidal Product Registration (BPR) standard EN13727, EN13624, or EN1499. For example, the antimicrobial activity may achieve a log reduction of at least 2.0, at least 2.5, at least 3.0, at least 3.5, at least 4.0, at least 4.5, at least 5.0, at least 5.5, or at least 6.0 under BPR standard EN13727, EN1276, EN13624, or EN1499. This includes an antimicrobial activity of log reduction of about 2.5, about 3.0, about 3.5, about 4.5, about 5.0, about 5.5, or about 6Ø The antimicrobial activity may be in the range of log reduction of about 2.0 to about 6.0, about 2.0 to about 5.0, about 2.0 to about 4.0, about 2.0 to about 3.0, about 3.0 to about 6.0, about 3.0 to about 5.0, about 3.0 to about 4.0, about 4.0 to about 6.0, or about 4.0 to about 5Ø In particular embodiments, the compositions have an antimicrobial activity of log reduction of at least 2.0, at least 3.0, or at least 4.0 under the BPR standard tests. Other suitable measurement standards for antimicrobial activity include those described in the regulatory guidelines of United States Environmental Protection Agency (EPA), such as the EPA standard that applies the Date Recue/Date Received 2020-09-17 "Quantitative Methods for Evaluating the Activity of Microbicides used on Hard, Non-Porous Surface" issued by the Organisation for Economic Co-operation and Development (OECD) (hereinafter "the OECD Quantitative Methods for Evaluating the Activity of Microbicides"), or "Series 810 - Product Performance Test Guidelines", as well as those required by the health agencies in other countries. The disclosed compositions may satisfy the BPR
standards, the EPA standard according to the OECD Quantitative Methods for Evaluating the Activity of Microbicides, and/or other standards intended to measure antimicrobial activity at a similar level using a similar testing procedure.
[0064]
Conventional organic acid based antimicrobial actives that are typically used in liquid disinfectant often present limitations in reaching antimicrobial efficacies at the permitted levels. Advantageously, the present disclosure provides a disinfectant composition, in which the antimicrobial efficacy is enhanced through the synergy between C1-8 organic acids and amino acid based surfactants. As a result, the disclosed disinfectant compositions may achieve a desirabale level of antimicrobial activity with a reduced amount of the antimicrobial actives, comparable to the currently available commercialized disinfectant products.
Conventional organic acid based antimicrobial actives that are typically used in liquid disinfectant often present limitations in reaching antimicrobial efficacies at the permitted levels. Advantageously, the present disclosure provides a disinfectant composition, in which the antimicrobial efficacy is enhanced through the synergy between C1-8 organic acids and amino acid based surfactants. As a result, the disclosed disinfectant compositions may achieve a desirabale level of antimicrobial activity with a reduced amount of the antimicrobial actives, comparable to the currently available commercialized disinfectant products.
[0065] The disclosed disinfectant compositions may provide an enhanced antimicrobial efficacy, at least, through the unexpected synergistic effect between C1-8 organic acid and amino acid based surfactant. See, e.g., EXAMPLES 1-6 and 9.
This unexpected synergy between C1-8 organic acid and amino acid based surfactant could be achieved against various microorganisms, such as bacteria, yeasts, fungi, spores, viruses, etc.
As non-limiting examples, the disclosed disinfectant compositions may provide a synergistic micro efficacy against the following microorganism: Staphylococcus aureus, Mycobacterium smegmatis, Candida albicans, Mycobacterium bovis, Tiychophyton interdigitale, and the like.
See, e.g., EXAMPLES 1-3 for S. aureus; EXAMPLES 4, 5 and 11 for M. smegmatis;
EXAMPLES
6 and 9 for C. albicans; EXAMPLE 10 for T. interdigitale. Such an enhanced micro efficacy of the disclosed disinfectant compositions may be achieved even without adding oxidizing agent (such as hydrogen peroxide) in the compositions. See, e.g., EXAMPLES 1, 3, 5, 6, 8 and 9.
Upon including an oxidizing agent, such as hydrogen peroxide, into the disclosed disinfected compositions, a further enhanced antimicrobial efficacy could be achieved. As a non-limiting example, EXAMPLE 9 shows that upon including hydrogen peroxide into the disinfectant composition (along with C1-18 organic acid, amino acid based surfactant, and stabilizing agent), the amount of C1-8 organic acid required to achieve the desirable micro efficacy could be reduced.
Date Recue/Date Received 2020-09-17
This unexpected synergy between C1-8 organic acid and amino acid based surfactant could be achieved against various microorganisms, such as bacteria, yeasts, fungi, spores, viruses, etc.
As non-limiting examples, the disclosed disinfectant compositions may provide a synergistic micro efficacy against the following microorganism: Staphylococcus aureus, Mycobacterium smegmatis, Candida albicans, Mycobacterium bovis, Tiychophyton interdigitale, and the like.
See, e.g., EXAMPLES 1-3 for S. aureus; EXAMPLES 4, 5 and 11 for M. smegmatis;
EXAMPLES
6 and 9 for C. albicans; EXAMPLE 10 for T. interdigitale. Such an enhanced micro efficacy of the disclosed disinfectant compositions may be achieved even without adding oxidizing agent (such as hydrogen peroxide) in the compositions. See, e.g., EXAMPLES 1, 3, 5, 6, 8 and 9.
Upon including an oxidizing agent, such as hydrogen peroxide, into the disclosed disinfected compositions, a further enhanced antimicrobial efficacy could be achieved. As a non-limiting example, EXAMPLE 9 shows that upon including hydrogen peroxide into the disinfectant composition (along with C1-18 organic acid, amino acid based surfactant, and stabilizing agent), the amount of C1-8 organic acid required to achieve the desirable micro efficacy could be reduced.
Date Recue/Date Received 2020-09-17
[0066] In some embodiments of the present disclosure, the disinfectant compositions may comprise a C1-8 organic acid, an amino acid surfactant, and a stabilizing agent. In some embodiments, the disclosed disinfectant compositions may comprise a C1-8 organic acid, an amino acid surfactant, a stabilizing agent, and an oxidizing agent (e.g., hydrogen peroxide).
[0067] The combination of antimicrobial actives (such as the organic acids used in liquid disinfectant solutions) with surface active ionic species (specifically amino acid based surfactants) generally presents formulation stability challenges at the levels sufficient to achieve an effective formulation. Significantly, the stability challenges also extend to the formulations involving oxidizing agents, such as peroxides and the like used in conventional products. Advantageously, the disclosed disinfectant compositions include a stabilizing agent to achieve the physical stability with desired shelf life, without interfering with the synergistic effect between amino acid based surfactants and C1-8 organic acids. Thus, the disclosed disinfectant compositions may provide both enhanced antimicrobial activity and improved stability with reduced concentration of active ingredients and and/or without the use of oxidizing agents. As non-limiting examples, EXAMPLES 7 and 10 show that the physical stability of the disclosed disinfectant compositions may be significantly improved due to the presence of stabilizing agent in the compositions. Moreover, the disclosed disinfectant compositions may maintain the same antimicrobial activity even after at least one month at 40 C storage. See EXAMPLE 8.
[0068] In some embodiments, the disclosed disinfectant compositions may have substantially the same antimicrobial activity after at least one month at 40 C storage. In some embodiments, the disclosed disinfectant compositions may have substantially the same antimicrobial activity even after at least 3 months at 40 C storage.
[0069] The disclosed disinfectant compositions may be physically and chemically stable during storage. For example, the composition may be in the form of a liquid solution which maintains its physical appearance as a clear solution without detectable phase separation, precipitation, coloration, or crystallization of the solute during storage. The solution may maintain a constant pH or undergo minimum extent of degradation or chemical change in its ingredients including, for example, a degradation of less than 1.0%, less than 0.5%, less than 0.1%, less than 0.05%, or even 0.01% of its active ingredients. The duration of the storage, for example, may be about one month, about two months, about three months, about six months, about nine months, or even about twelve months.
[0070] The disclosed composition may also maintain substantially the same level of chemical and biological activities over the storage time. The property to "maintain" an Date Recue/Date Received 2020-09-17 antimicrobial activity as used herein means a product's ability to retain its antimicrobial activity at a level that is at least 90% of its original activity when the product is freshly prepared. For example, the present compositions may maintain at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, at least 99.5%, or even at least 99.9% of their antimicrobial activities over a time period of at least two weeks, at least one month, at least two months, at least three months, or even at least 6 months. The compositions may maintain about 90%, about 91%, about 92%, about 93%, about 94%, about 95%, about 96%, about 97%, about 98%, about 99%, about 99.5%, or even about 99.9% of the antimicrobial activity over a period of at least one month or at least three months. In some embodiments, the compositions maintain about 90%, about 91%, about 92%, about 93%, about 94%, about 95%, about 96%, about 97%, about 98%, about 99%, about 99.5%, or even about 99.9% of the antimicrobial activity over a period of at least three months.
[0071] The present compositions may be stable over a temperature range of about 0 C to about 50 C including for example, about 0 C to about 45 C, about 0 C to about 40 C, about 0 C to about 35 C, about 0 C to about 30 C, about 0 C to about 25 C (or room temperature), or about 0 C to about 20 C storage. For example, the compositions may maintain their antimicrobial activities at a temperature of about 0 C, about 5 C, about 10 C, about 15 C, about 20 C, about 25 C, about 30 C, about 35 C, about 40 C, about 45 C, or even about 50 C storage for a period of at least two weeks, at least one month, at least two months, at least three months, or even at least six months. In some embodiments, the compositions maintain about 90%, about 91%, about 92%, about 93%, about 94%, about 95%, about 96%, about 97%, about 98%, about 99%, about 99.5%, or even about 99.9%
of the antimicrobial activity at a temperature range of about 0 C to about 40 C storage over a period of at least one month or at least three months. In some embodiments, the compositions maintain about 90%, about 91%, about 92%, about 93%, about 94%, about 95%, about 96%, about 97%, about 98%, about 99%, about 99.5%, or even about 99.9%
of the antimicrobial activity at a temperature of about 0 C, about 25 C, or about 40 C
storage over a period of at least one month. In some embodiments, the compositions maintain about 90%, about 91%, about 92%, about 93%, about 94%, about 95%, about 96%, about 97%, about 98%, about 99%, about 99.5%, or even about 99.9% of the antimicrobial activity at a temperature of about 0 C, about 25 C, or about 40 C storage over a period of at least three months.
of the antimicrobial activity at a temperature range of about 0 C to about 40 C storage over a period of at least one month or at least three months. In some embodiments, the compositions maintain about 90%, about 91%, about 92%, about 93%, about 94%, about 95%, about 96%, about 97%, about 98%, about 99%, about 99.5%, or even about 99.9%
of the antimicrobial activity at a temperature of about 0 C, about 25 C, or about 40 C
storage over a period of at least one month. In some embodiments, the compositions maintain about 90%, about 91%, about 92%, about 93%, about 94%, about 95%, about 96%, about 97%, about 98%, about 99%, about 99.5%, or even about 99.9% of the antimicrobial activity at a temperature of about 0 C, about 25 C, or about 40 C storage over a period of at least three months.
[0072] The stabilizing agent may contribute to an increase in the antimicrobial activity of the disclosed disinfectant compositions. At least, this may be due to the unexpected Date Recue/Date Received 2020-09-17 synergistic effect between the amino acid based surfactant and the stabilizing agent. See EXAMPLE 11.
[0073] In some embodiments, the disclosed disinfectant composition is in the form of a solid, such as a powder or a tablet, or a liquid, such as a solution or a suspension. In some embodiments, the composition is power that may be dissolved by a user with a suitable solvent (such as water) to prepare a liquid disinfectant. In some embodiments, the composition is a ready-to-use solution. In some embodiments, the composition is a liquid concentrate, which may be diluted by a user with a suitable diluent at a concentrate/diluent ratio of, for example, 1:1 to 1:1000 by weight. This includes a concentrate/diluent ratio of about 1:5, about 1:10, about 1:20, about 1:50, about 1:100, about 1:200, or about 1:500 by weight.
[0074] It has been known in the art that the concentrated disinfectant composition having an amount of salicylic acid above 0.2% weight, based on total weight of the composition, is rather difficult to achieve. This is due to the poor solubility of salicylic acid at such concentrated amount, thereby generally resulting on a phrase separation of the formulation. Surprisingly, the disinfectant composition of present disclosure could be obtained at high level of salicylic acid (e.g., above 0.2 %weight based on total weight of the disinfectant composition), with high stability and excellent antimicrobial efficacy. See EXAMPLE 10.
[0075] The disinfectant compositions disclosed herein may be built on plant-origin, biodegradable raw materials and demonstrate desired product attributes such as the foam profile comparable to commercial non-green product, at the same time providing enhanced antimicrobial efficacy. The compositions disclosed herein may have improved olfactory aspects compared to conventional disinfectant products that contain biodegradable and/or plant origin raw materials. For example, the compositions may be odorless or essentially free of any unpleasant odor. In some embodiments, the compositions disclosed herein may not produce any negative or unsatisfactory olfactory aspects and are therefore likely to be used more frequently, providing increased sanitization compliance (e.g., hand washing).
[0076] In some embodiments, the disclosed synergistic disinfectant composition comprises:
a C1-8 organic acid;
an amino acid based surfactant; and a stabilizing agent, wherein the composition has an antimicrobial activity of log reduction of at least 2 under Biocidal Product Registration (BPR, Regulation (EN) 528/2012) standard EN13727, Date Recue/Date Received 2020-09-17 EN1276, EN13624, or EN1499; and/or the EPA standard according to the OECD
Quantitative Methods for Evaluating the Activity of Microbicides, and wherein the composition has substantially the same antimicrobial activity after at least one month at 40 C storage.
a C1-8 organic acid;
an amino acid based surfactant; and a stabilizing agent, wherein the composition has an antimicrobial activity of log reduction of at least 2 under Biocidal Product Registration (BPR, Regulation (EN) 528/2012) standard EN13727, Date Recue/Date Received 2020-09-17 EN1276, EN13624, or EN1499; and/or the EPA standard according to the OECD
Quantitative Methods for Evaluating the Activity of Microbicides, and wherein the composition has substantially the same antimicrobial activity after at least one month at 40 C storage.
[0077] In some embodiments, the disinfectant composition may further comprise an oxidizing agent.
[0078] In some embodiments, the disinfectant composition may further comprise an anionic surfactant.
[0079] In some embodiments, the disclosed synergistic disinfectant composition comprises:
from about 0.1% to about 25.0% by weight of a C1-8 organic acid;
from about 0.1% to about 20.0% by weight of an amino acid based surfactant;
from about 0.1% to about 20.0% by weight of an anionic surfactant; and from about 0.05 % to about 20.0 % by weight of a stabilizing agent , all based on total weight of the disinfectant composition.
from about 0.1% to about 25.0% by weight of a C1-8 organic acid;
from about 0.1% to about 20.0% by weight of an amino acid based surfactant;
from about 0.1% to about 20.0% by weight of an anionic surfactant; and from about 0.05 % to about 20.0 % by weight of a stabilizing agent , all based on total weight of the disinfectant composition.
[0080] In some embodiments, the disinfectant composition may further comprise from about 0.01% to about 5.0% by weight of an oxidizing agent based on total weight of the composition.
[0081] In some embodiments, the balance of the composition is water.
[0082] In some embodiments, the disclosed disinfectant composition is substantially free of linear benzyl benzene sulfonate (e.g., dodecylbenzenesulfonic acid) and/or aromatic alcohol (e.g., benzyl alcohol).
[0083] In another aspect, the present disclosure provides a method of disinfecting a surface, the method comprising applying a synergistic disinfectant composition as disclosed herein to the surface. Suitable surfaces that may be disinfected using the present compositions include, but are not limited to metal, ceramic, glass, plastic, stainless steel, or wood surfaces.
Metal surfaces may include soft metal surfaces, such as aluminum or alloy surfaces. The surface may be a part of a ware, an instrument, a device, furniture, upholstery, or an operational platform used in household, restaurant, healthcare facilities, or other public areas.
Examples of household surfaces including, but are not limited to, dishes, cooking wares, cooking devices or appliances, tables, stairs, floors, tiles, sinks, and toilets.
Metal surfaces may include soft metal surfaces, such as aluminum or alloy surfaces. The surface may be a part of a ware, an instrument, a device, furniture, upholstery, or an operational platform used in household, restaurant, healthcare facilities, or other public areas.
Examples of household surfaces including, but are not limited to, dishes, cooking wares, cooking devices or appliances, tables, stairs, floors, tiles, sinks, and toilets.
[0084] The disclosed synergistic compositions may also be used to disinfect a body surface of an animal, including human, cat, dog, or other animals. For example, the composition may be used to disinfect the surface of a human's hand, leg, or other body parts.
In some embodiments, the compositions may be used to disinfect human hands.
Date Recue/Date Received 2020-09-17
In some embodiments, the compositions may be used to disinfect human hands.
Date Recue/Date Received 2020-09-17
[0085] The following non-limiting examples illustrate the compositions of the present disclosure and methods of use thereof.
EXAMPLES
EXAMPLES
[0086] Materials and Methods
[0087] Commercially available materials include: alkyl (C12-14) 2E0 sulphuric acid Na-salt (TexaponC) N 70, BASF; EmalC) 228 HP, KAO; RhodapexC) ESB 70 NAT, Solvay), sodium dodecyl sulphate (Galaxy 780, Galaxy surfactants Ltd; CalfoamC) SLS-30, Pilot;
RhodaponC) LS 92RNB, Solvay), N-lauroyl sarcosinic acid Na-salt (CrodasinicTTM
LS30-LQ-(RB), Croda; PerlastanC) L30, Schill & Seilacher), lactic acid (Lactic Acid 88% FCC, Corbion Purac;
Galacid Excel 88, Jungbunzlauer), citric acid (Citric Acid, monohydrate, Hangzhou Ruijiang or Jungbunzlauer), glycolic acid (Clariant, Merck).
RhodaponC) LS 92RNB, Solvay), N-lauroyl sarcosinic acid Na-salt (CrodasinicTTM
LS30-LQ-(RB), Croda; PerlastanC) L30, Schill & Seilacher), lactic acid (Lactic Acid 88% FCC, Corbion Purac;
Galacid Excel 88, Jungbunzlauer), citric acid (Citric Acid, monohydrate, Hangzhou Ruijiang or Jungbunzlauer), glycolic acid (Clariant, Merck).
[0088] General preparation methods. The experimental batches were prepared in lab using the listed ingredients with stepwise addition of each raw material and mixing using a steel blade stirrer at 200 to 300 rpm. The balance water was maintained so that the total composition of the resultant homogeneous mixture was at 100%.
[0089] Instruments used and general testing methods. The batches were tested for physical parameters using standard testing methods. Specific gravity was measured under ASTM D1217 using pycnometer. The pH values were measured using ASTM E70-07 (pH
meter using glass electrode).
meter using glass electrode).
[0090] Antimicrobial activities were determined according to the regulatory guidelines of United States Environmental Protection Agency (EPA), according to the OECD
Quantitative Methods for Evaluating the Activity of Microbicides.
Quantitative Methods for Evaluating the Activity of Microbicides.
[0091] Furthermore, the antimicrobial activities were determined under the Biocidal Products Regulation (BPR) standard EN13727, EN13624, or EN1499 according to "Performance Criteria - Overview of (EN) Standards, Test Conditions, and Pass Criteria"
(Appendix 4, BPR Efficacy Working Group Document, March 2017) available at European Chemical Agency (ECHA).
(Appendix 4, BPR Efficacy Working Group Document, March 2017) available at European Chemical Agency (ECHA).
[0092] The term "log reduction" is a mathematical term used to show the relative number of live microbials being reduced from a tested area. For example, "a log reduction of 5" or "a 5-log reduction" means lowering the number of microbials by 105; "a 4-log reduction"
means lowering the number of microbials by 104; "a 3-log reduction" means lowering the number of microbials by 103; "a 2-log reduction" means lowering the number of microbials by 102; and "a 1-log reduction" means lowering the number of microbials by 10.
Date Recue/Date Received 2020-09-17
means lowering the number of microbials by 104; "a 3-log reduction" means lowering the number of microbials by 103; "a 2-log reduction" means lowering the number of microbials by 102; and "a 1-log reduction" means lowering the number of microbials by 10.
Date Recue/Date Received 2020-09-17
[0093] Table 1 showed the micro efficacy of the tested disinfectant formulations against S. aureus based on the EPA standard according to the OECD Quantitative Methods for Evaluating the Activity of Microbicides. The organic acids were a mixture of salicylic acid and lactic acid. The amino acid based surfactant was sodium cocoyl glutamate (hereinafter "sodium glutamate"), and the stabilizing agent was propylene glycol n-butyl ether (hereinafter "PnB").
Table 1 Formulation #1 #2 #3 Ingredients On 100% On 100% On 100%
Salicylic acid 0 0.08 0.08 Lactic acid 0 0.38 0.38 Hydrogen peroxide 1 1 1 Sodium glutamate 1 0 1 PnB 3 3 3 Sodium xylene sulfonate 0.3 0.3 0.3 Water Bal. Bal. Bal.
Micro Efficacy against S. aureus 2.02 0.54 3.66 (Log Reduction)
Table 1 Formulation #1 #2 #3 Ingredients On 100% On 100% On 100%
Salicylic acid 0 0.08 0.08 Lactic acid 0 0.38 0.38 Hydrogen peroxide 1 1 1 Sodium glutamate 1 0 1 PnB 3 3 3 Sodium xylene sulfonate 0.3 0.3 0.3 Water Bal. Bal. Bal.
Micro Efficacy against S. aureus 2.02 0.54 3.66 (Log Reduction)
[0094] Formulation #1, which contained C1-8 organic acids but not amino acid based surfactant, provided a 2.02-log reduction against S. aureus. Formulation #2, which contained amino acid based surfactant but not C1-8 organic acids, provided a 0.54-log reduction. Formulation #3, which contained both C1-8 organic acids and amino acid based surfactant, provided a 3.66-log reduction against S. aureus.
[0095] If the effect between C1-8 organic acids and sodium glutamate surfactant was merely an additive effect, the expected log reduction of S. aureus for Formulation #3 (contained both amino acid based surfactant and organic acids) would be 102.02 100.54 =
10203, which would show an expected log reduction of 2.03.
10203, which would show an expected log reduction of 2.03.
[0096] However, Formulation #3 showed a log reduction of 3.66 against S.
aureus, which is larger than the additive log redutions from Formulation #1 and Formulation #2.
Therefore, there was a synergistic effect between C1-8 organic acids and amino acid based surfactant against S. aureus.
Date Recue/Date Received 2020-09-17
aureus, which is larger than the additive log redutions from Formulation #1 and Formulation #2.
Therefore, there was a synergistic effect between C1-8 organic acids and amino acid based surfactant against S. aureus.
Date Recue/Date Received 2020-09-17
[0097] Table 2 showed the synergistic effect between organic acids (a mixture of salicylic acid and lactic acid) and amino acid based surfactant (sodium glutamate) against S.
aureus under the EPA standard according to the OECD Quantitative Methods for Evaluating the Activity of Microbicides.
Table 2 Formulation #4 #5 #6 #7 Ingredients On 100% On 100% On 100% On 100%
I Salicylic acid 0.15 0 0.15 0.15 I Lactic acid 0.75 0 0.75 0.75 I Hydrogen peroxide 1 1 1 0 I Sodium glutamate 0 1.5 1.5 1.5 I PnB 3 3 3 3 I Sodium xylene 0.3 0.3 0.3 0.3 sulfonate Water Bal. Bal. Bal. Bal.
Micro Efficacy against S. aureus 5.03 6.38 2.95 6.38 (Log Reduction)
aureus under the EPA standard according to the OECD Quantitative Methods for Evaluating the Activity of Microbicides.
Table 2 Formulation #4 #5 #6 #7 Ingredients On 100% On 100% On 100% On 100%
I Salicylic acid 0.15 0 0.15 0.15 I Lactic acid 0.75 0 0.75 0.75 I Hydrogen peroxide 1 1 1 0 I Sodium glutamate 0 1.5 1.5 1.5 I PnB 3 3 3 3 I Sodium xylene 0.3 0.3 0.3 0.3 sulfonate Water Bal. Bal. Bal. Bal.
Micro Efficacy against S. aureus 5.03 6.38 2.95 6.38 (Log Reduction)
[0098] Formulation #4, which contained C1-8 organic acids but not sodium glutamate, provided a 5.03-log reduction against S. aureus. Formulation #5, which contained sodium glutamate but not C1-8 organic acids, provided a 2.95-log reduction against S. aureus.
Formulation #6, which contained both C1-8 organic acids and sodium glutamate, provided a 6.38-log reduction against S. aureus.
Formulation #6, which contained both C1-8 organic acids and sodium glutamate, provided a 6.38-log reduction against S. aureus.
[0099] If the effect between C1-8 organic acids and sodium glutamate surfactant was merely an additive effect, the expected log reduction of S. aureus for Formulation #6 (contained both amino acid based surfactant and organic acids) would be 105.03 + 102.95 =
105.034, which would show an expected log reduction of 5.034.
105.034, which would show an expected log reduction of 5.034.
[00100] However, Formulation #6 showed a log reduction of 6.38 against S.
aureus, which is larger than the additive log redutions from Formulation #4 and Formulation #5.
Therefore, there was a synergistic effect between C1-8 organic acids and amino acid based surfactant against S. aureus.
aureus, which is larger than the additive log redutions from Formulation #4 and Formulation #5.
Therefore, there was a synergistic effect between C1-8 organic acids and amino acid based surfactant against S. aureus.
[00101] Formulation #7 contained the same ingredients as Formulation #6, but without hydrogen peroxide (an oxidizing agent). The micro efficacy S. aureus of Formulation #7 was about the same as Formulation #6. Thus, such high efficacy against 5 aureus was Date Recue/Date Received 2020-09-17 achieved even without the use of hydrogen peroxide in the formulation.
[00102]Table 3 showed the micro efficacy of the tested disinfectant formulations against S. aureus based on the EPA standard according to the OECD Quantitative Methods for Evaluating the Activity of Microbicides.
Table 3 Formulation A B C D
Ingredients On 100% On 100% On 100% On 100%
C1-8 Organic acids 0 2.6 2.6 2.6 Hydrogen peroxide 0.5 0.5 0.5 0 Sodium sarcosinate 1.5 0 1.5 1.5 Ethanol 5 5 5 5 I Sodium xylene 0.3 0.3 0.3 0.3 sulfonate 1 Water Bal. Bal. Bal. Bal.
Micro Efficacy against S. aureus 3.29 0.82 6.38 6.38 I
(Log Reduction) ______________________________________________ -
Table 3 Formulation A B C D
Ingredients On 100% On 100% On 100% On 100%
C1-8 Organic acids 0 2.6 2.6 2.6 Hydrogen peroxide 0.5 0.5 0.5 0 Sodium sarcosinate 1.5 0 1.5 1.5 Ethanol 5 5 5 5 I Sodium xylene 0.3 0.3 0.3 0.3 sulfonate 1 Water Bal. Bal. Bal. Bal.
Micro Efficacy against S. aureus 3.29 0.82 6.38 6.38 I
(Log Reduction) ______________________________________________ -
[00103] A very strong synergistic effect between C1-8 organic acids and amino acid based surfactant against S. aureus was observed in the disinfectant Formulation C, wherein the organic acids were a mixture of salicylic acid and lactic acid (at 0.4%
weight and 2.2%
weight, respectively, based on total weight of the formulation), the amino acid based surfactant was a sodium salt of N-lauroyl sarcosinate (hereinafter "Sodium sarcosinate"), and the stabilizing agent was ethanol. Formulation D showed that the high efficacy against S.
aureus were achieved even without the use of hydrogen peroxide in the formulation.
weight and 2.2%
weight, respectively, based on total weight of the formulation), the amino acid based surfactant was a sodium salt of N-lauroyl sarcosinate (hereinafter "Sodium sarcosinate"), and the stabilizing agent was ethanol. Formulation D showed that the high efficacy against S.
aureus were achieved even without the use of hydrogen peroxide in the formulation.
[00104] M. smegmatis was known as the surrogate strain for M. tuberculosis.
The micro efficacy of the disinfectant formulation was determined based on the EPA
standard according to the OECD Quantitative Methods for Evaluating the Activity of Microbicides. Table 4 demonstrated the synergistic effect between C1-8 organic acids and amino acid based surfactant against M. smegmatis, wherein the organic acids were a mixture of salicylic acid and lactic acid (at 0.4% weight and 2.2% weight, respectively, based on total weight of the formulation), and the amino acid based surfactant was sodium sarcosinate.
Date Recue/Date Received 2020-09-17 Table 4 Formulation E F G
Ingredients On 100% On 100% On 100%
C1-8 Organic acids 2.0 2.0 2.0 Hydrogen peroxide 0.5 0.5 0.5 Sodium sarcosinate 0.45 0 0.45 ______________________________________________________________________ I
PnB 0 3.8 3.8 Sodium xylene sulfonate 0.3 0.3 0.3 Water Bal. Bal. Bal.
Micro Efficacy against M. smegmatis 0.57 4.51 6.07 (Log Reduction)
The micro efficacy of the disinfectant formulation was determined based on the EPA
standard according to the OECD Quantitative Methods for Evaluating the Activity of Microbicides. Table 4 demonstrated the synergistic effect between C1-8 organic acids and amino acid based surfactant against M. smegmatis, wherein the organic acids were a mixture of salicylic acid and lactic acid (at 0.4% weight and 2.2% weight, respectively, based on total weight of the formulation), and the amino acid based surfactant was sodium sarcosinate.
Date Recue/Date Received 2020-09-17 Table 4 Formulation E F G
Ingredients On 100% On 100% On 100%
C1-8 Organic acids 2.0 2.0 2.0 Hydrogen peroxide 0.5 0.5 0.5 Sodium sarcosinate 0.45 0 0.45 ______________________________________________________________________ I
PnB 0 3.8 3.8 Sodium xylene sulfonate 0.3 0.3 0.3 Water Bal. Bal. Bal.
Micro Efficacy against M. smegmatis 0.57 4.51 6.07 (Log Reduction)
[00105] Table 5 further demonstrated the synergistic effect between organic acids and amino acid based surfactant against M. smegmatis under the EPA standard according to the OECD Quantitative Methods for Evaluating the Activity of Microbicides. The organic acids were a mixture of salicylic acid, lactic acid, and formic acid (at 0.3%
weight, 1.9% weight, and 1.0% weight, respectively, based on total weight of the formulation).The amino acid based surfactant was sodium sarcosinate, and the stabilizing agent was PnB.
weight, 1.9% weight, and 1.0% weight, respectively, based on total weight of the formulation).The amino acid based surfactant was sodium sarcosinate, and the stabilizing agent was PnB.
[00106] Formulation K showed that the high efficacy against M. smegmatis were achieved even without the use of hydrogen peroxide in the formulation.
Table 5 Formulation H I 3 K
Ingredients On 100% On 100% On 100% On 100%
I C1-8 Organic acids 0 3.2 3.2 3.2 I Hydrogen peroxide 1.0 1.0 1.0 0 ISodium sarcosinate 1.5 0 1.5 1.5 I PnB 3.8 3.8 3.8 3.8 ISodium xylene sulfonate 0.3 0.3 0.3 0.3 __ 1 Water Bal. Bal. Bal. Bal.
Micro Efficacy against M. smegmatis 0.38 4.13 6.13 6.13 (Log Reduction) ---Date Recue/Date Received 2020-09-17
Table 5 Formulation H I 3 K
Ingredients On 100% On 100% On 100% On 100%
I C1-8 Organic acids 0 3.2 3.2 3.2 I Hydrogen peroxide 1.0 1.0 1.0 0 ISodium sarcosinate 1.5 0 1.5 1.5 I PnB 3.8 3.8 3.8 3.8 ISodium xylene sulfonate 0.3 0.3 0.3 0.3 __ 1 Water Bal. Bal. Bal. Bal.
Micro Efficacy against M. smegmatis 0.38 4.13 6.13 6.13 (Log Reduction) ---Date Recue/Date Received 2020-09-17
[00107] Table 6 demonstrated a synergistic effect between C1-8 organic acids and amino acid based surfactant against Candida Alb/cans under the standard test EN13624, wherein the organic acids were a mixture of lactic acid and formic acid, the amino acid based surfactant was sodium sarcosinate, and the stabilizing agent was ethanol.
Table 6 Formulation L M N 0 P
----Ingredients On 100% On 100% On 100% On 100% On 100%
Organic Acids 5.1 0 0.5 5.4 8.1 on 100% active Sodium sarcosinate, I
30% 0 9 9 9 9 I Ethanol, 95% 5.2 5.2 5.2 5.2 5.2 I Glycerine, 87% 1 1 1 1 1 I SLES 2E0, 28%(') 9 9 9 9 9 I SLS, 30% 9 9 9 9 9 Water Bal. Bal. Bal. Bal. Bal.
Micro Efficiency against <1 <1 1.38 2.00 4.18 Candida Alb/cans (Log reduction) (1) SLES 2E0 is Sodium lauryl ether sulfate, 2E0 (2) SLS is Sodium laureth sulfate
Table 6 Formulation L M N 0 P
----Ingredients On 100% On 100% On 100% On 100% On 100%
Organic Acids 5.1 0 0.5 5.4 8.1 on 100% active Sodium sarcosinate, I
30% 0 9 9 9 9 I Ethanol, 95% 5.2 5.2 5.2 5.2 5.2 I Glycerine, 87% 1 1 1 1 1 I SLES 2E0, 28%(') 9 9 9 9 9 I SLS, 30% 9 9 9 9 9 Water Bal. Bal. Bal. Bal. Bal.
Micro Efficiency against <1 <1 1.38 2.00 4.18 Candida Alb/cans (Log reduction) (1) SLES 2E0 is Sodium lauryl ether sulfate, 2E0 (2) SLS is Sodium laureth sulfate
[00108] Table 7 showed an improved stability of the disinfectant formulations upon including ethanol as a stabilizing agent in the formulations, wherein the disinfectant formulations comprised a mixture of lactic acid and formic acid as the C1-8 organic acids, and sodium sarcosinate as the amino acid based surfactant. Formulation Q, which did not include any ethanol stabilizing agent, was an unstable cloudy solution that resulted in a phase separation. Upon including ethanol stabilizing agent in the formulations (Formulations R and S), the stable clear solutions were achieved.
Table 7 Formulation Q R S
Ingredients On 100% On 100% On 100%
SLES 2E0/ 3E0 1.0 1.0 1.5 SLS 1.0 1.0 1.5 Date Recue/Date Received 2020-09-17 I Sodium sarcosinate 3.5 3.5 4.0 I
I Glycerine 0.9 0.9 0.9 I
I Lactic acid 8.0 8.0 7.0 I
I Formic acid 1.0 1.0 0.0 I
I Ethanol 0 0.5 0.5 I
Water Bal. Bal. Bal.
Appearance Cloudy solution Clear solution Clear solution I Stability Phase separation Stable Stable I
Table 7 Formulation Q R S
Ingredients On 100% On 100% On 100%
SLES 2E0/ 3E0 1.0 1.0 1.5 SLS 1.0 1.0 1.5 Date Recue/Date Received 2020-09-17 I Sodium sarcosinate 3.5 3.5 4.0 I
I Glycerine 0.9 0.9 0.9 I
I Lactic acid 8.0 8.0 7.0 I
I Formic acid 1.0 1.0 0.0 I
I Ethanol 0 0.5 0.5 I
Water Bal. Bal. Bal.
Appearance Cloudy solution Clear solution Clear solution I Stability Phase separation Stable Stable I
[00109] Disinfectant Formulation T comprised a mixture of lactic acid and formic acid as the C1-8 organic acids, sodium sarcosinate as the amino acid based surfactant, and ethanol as the stabilizing agent.
Formulation T
Ingredient %Active Amount Weight (g) %Weight Water 100% 61.0 61.00 SLES 2E0/ 3E0 28% 9.0 2.52 SLS 30% 9.0 2.70 Sodium Sarcosinate 30% 9.0 2.70 Glycerine 87% 1.0 0.87 Lactic acid 88% 4.7 4.14 Formic acid 85% 1.10 0.94 Ethanol 95% 5.2 4.94 100.0 100.00%
Formulation T
Ingredient %Active Amount Weight (g) %Weight Water 100% 61.0 61.00 SLES 2E0/ 3E0 28% 9.0 2.52 SLS 30% 9.0 2.70 Sodium Sarcosinate 30% 9.0 2.70 Glycerine 87% 1.0 0.87 Lactic acid 88% 4.7 4.14 Formic acid 85% 1.10 0.94 Ethanol 95% 5.2 4.94 100.0 100.00%
[00110] Table 8 showed the physical stability and antimicrobial stability data for Formulation T at 40 C storage. Formulation T was physical stable and maintained its antimicrobial activity for at least three months during storage.
Table 8 Stability period Appearance pH Micro Efficacy Against (at 40 C (range 2.3 to 2.8) Candida albicans storage) (EN13624, log reduction) 0 day Clear, stable liquid 2.70 > 4 1 month Clear, stable liquid 2.70 > 4 3 month Clear, stable liquid 2.78 > 4 Date Recue/Date Received 2020-09-17
Table 8 Stability period Appearance pH Micro Efficacy Against (at 40 C (range 2.3 to 2.8) Candida albicans storage) (EN13624, log reduction) 0 day Clear, stable liquid 2.70 > 4 1 month Clear, stable liquid 2.70 > 4 3 month Clear, stable liquid 2.78 > 4 Date Recue/Date Received 2020-09-17
[00111] Table 9 showed the micro efficacy of the tested disinfectant formulations against Candida alb/cans under the standard test EN13624.
Table 9 Formulation V W X Y Z
______________________ --Ingredients On 100% On 100% On 100% On 100% On 100%
Alkyl ether sulfate salts 0.95-1.05 2.5-3.0 2.5-3.0 0.95-1.05 2.0-2.5 I
Alkyl sulfate salt 0.9-1.0 2.5-3.0 2.5-3.0 1.5-2.0 ¨
2.5 I
Alpha olefin sulphonates 1.1-1.2 0.9-1.0 0.9-1.0 0.9-1.0 0 I
Amino acid based 0 0 1.5-2.5 1.5-2.5 2.4 I
surfactant C1-8 Organic acids (including alpha hydroxy 9.5-10.5 9.5-10.5 0 10-11 ¨ 4 I
acid) Alcohols, glycols, I
glycerols, glycol ethers Hydrogen peroxide 0 0 0 0 0 0.5-1.5 I
Demineralized Water Bal. Bal. Bal. Bal. 0 Micro Efficacy against Candida alb/cans <2 <2 <2 >4 >4 (Log Reduction) ______________________ ----
Table 9 Formulation V W X Y Z
______________________ --Ingredients On 100% On 100% On 100% On 100% On 100%
Alkyl ether sulfate salts 0.95-1.05 2.5-3.0 2.5-3.0 0.95-1.05 2.0-2.5 I
Alkyl sulfate salt 0.9-1.0 2.5-3.0 2.5-3.0 1.5-2.0 ¨
2.5 I
Alpha olefin sulphonates 1.1-1.2 0.9-1.0 0.9-1.0 0.9-1.0 0 I
Amino acid based 0 0 1.5-2.5 1.5-2.5 2.4 I
surfactant C1-8 Organic acids (including alpha hydroxy 9.5-10.5 9.5-10.5 0 10-11 ¨ 4 I
acid) Alcohols, glycols, I
glycerols, glycol ethers Hydrogen peroxide 0 0 0 0 0 0.5-1.5 I
Demineralized Water Bal. Bal. Bal. Bal. 0 Micro Efficacy against Candida alb/cans <2 <2 <2 >4 >4 (Log Reduction) ______________________ ----
[00112] Formulation V, which comprised C1-8 organic acids as the antimicrobial active but without amino acid based surfactant, provided a log reduction of less than 2 against Candida alb/cans. No significant improvement in the antimicrobial activity was observed even when the amount of anionic surfactant was increased (Formulation W).
Formulation X, which comprised amino acid based surfactant but without C1-8 organic acids, provided a log reduction of less than 2. Formulation Y, which comprised both C1-18 organic acid and amino acid based surfactant, provided the desired antimicrobial efficacy (>1og4 reduction against Candida alb/cans passing EN13624). These results demonstrated the synergy between the amino acid based surfactant and the C1-8 organic acid in achieving an effective level of antimicrobial activity against Candida alb/cans.
Formulation X, which comprised amino acid based surfactant but without C1-8 organic acids, provided a log reduction of less than 2. Formulation Y, which comprised both C1-18 organic acid and amino acid based surfactant, provided the desired antimicrobial efficacy (>1og4 reduction against Candida alb/cans passing EN13624). These results demonstrated the synergy between the amino acid based surfactant and the C1-8 organic acid in achieving an effective level of antimicrobial activity against Candida alb/cans.
[00113] Furthermore, Formulation Z demonstrated that upon including hydrogen peroxide (along with C1-18 organic acids, amino acid based surfactant, and stabilizing agent), the amount of C1-18 organic acids required to achieve the desired antimicrobial efficacy could be significantly reduced.
Date Recue/Date Received 2020-09-17
Date Recue/Date Received 2020-09-17
[00114] Table 10 below showed that the disinfectant compositions of Formulation DD was obtained at high level of salicylic acid (e.g., above 2 %weight based on total weight of the formulation), with high stability and excellent antimicrobial efficacy.
The micro efficacy of the disinfectant formulation was determined based on the EPA standard according to the OECD Quantitative Methods for Evaluating the Activity of Microbicides.
Table 10 Formulation AA BB CC DD
Ingredients On 100% On 100% On 100% On 100%
I Salicylic acid 0.8 0.8 1.6 2.4 I Hydrogen peroxide 4.25 4.25 4.25 4.25 I Phosphoric acid 3.4 3,4 ISodium sarcosinate 0 6.7 6.7 6.7 Alcohol (C6-C12) ethoxylate (3.5 EO) Alkyl diphenyloxide I
disulphonic acid Na salt 0 0 3.8 3.8 I Ethanol 0 0 20 20 Water Bal. Bal. Bal. Bal.
Physical Stability Clear phase Clear Clear separation Dilution 1:16 1:16 1:16 1:16 Fungicidal Efficacy against T interdigitale 4.32 N/A 5.60 5.60 (Log reduction) ____________________________________ - _____________________
The micro efficacy of the disinfectant formulation was determined based on the EPA standard according to the OECD Quantitative Methods for Evaluating the Activity of Microbicides.
Table 10 Formulation AA BB CC DD
Ingredients On 100% On 100% On 100% On 100%
I Salicylic acid 0.8 0.8 1.6 2.4 I Hydrogen peroxide 4.25 4.25 4.25 4.25 I Phosphoric acid 3.4 3,4 ISodium sarcosinate 0 6.7 6.7 6.7 Alcohol (C6-C12) ethoxylate (3.5 EO) Alkyl diphenyloxide I
disulphonic acid Na salt 0 0 3.8 3.8 I Ethanol 0 0 20 20 Water Bal. Bal. Bal. Bal.
Physical Stability Clear phase Clear Clear separation Dilution 1:16 1:16 1:16 1:16 Fungicidal Efficacy against T interdigitale 4.32 N/A 5.60 5.60 (Log reduction) ____________________________________ - _____________________
[00115] Table 11 demonstrated the synergistic effect between stabilizing agent and amino acid based surfactant against S. aureus. The amino acid based surfactant was sodium sarcosinate, and the stabilizing agent was PnB. The micro efficacy of the disinfectant formulation was determined based on the EPA standard according to the OECD
Quantitative Methods for Evaluating the Activity of Microbicides.
Date Recue/Date Received 2020-09-17 Table 11 Formulation EE FF GG
Ingredients On 100% On 100% On 100%
Organic acids 0 0 0 I Hydrogen peroxide 0.5 0.5 0.5 ISodium sarcosinate 1.5 0 1.5 I PnB 0 3.8 3.8 I Sodium xylene 0.3 0.3 0.3 1 sulfonate Water Bal. Bal. Bal.
Micro Efficacy against S. aureus 0.23 0.16 0.68 (Log Reduction)
Quantitative Methods for Evaluating the Activity of Microbicides.
Date Recue/Date Received 2020-09-17 Table 11 Formulation EE FF GG
Ingredients On 100% On 100% On 100%
Organic acids 0 0 0 I Hydrogen peroxide 0.5 0.5 0.5 ISodium sarcosinate 1.5 0 1.5 I PnB 0 3.8 3.8 I Sodium xylene 0.3 0.3 0.3 1 sulfonate Water Bal. Bal. Bal.
Micro Efficacy against S. aureus 0.23 0.16 0.68 (Log Reduction)
[00116] Various features and advantages of the invention are set forth in the following claims.
Date Recue/Date Received 2020-09-17
Date Recue/Date Received 2020-09-17
Claims
We claim:
1.-35. (Cancelled) 36. A method of disinfecting a surface, the method comprising:
applying a synergistic disinfectant composition to a surface selected from metal, ceramic, glass, hard plastic, stainless steel, wood or combinations thereof, or to a surface selected from woven fabric, non-woven fabric, filter media, hospital or surgical linen, hospital or surgical garment, soft-surface medical instrument, soft-surface surgical instrument, soft-surface packaging, paper, fiber, soft plastics, elastomer, food, or combinations thereof, wherein the synergistic disinfectant composition comprises:
from about 0.1% to about 25.0% by weight of a C1-8 organic acid;
from about 0.1% to about 20.0% by weight of an amino acid based surfactant;
at least 0.1% but less than 5.0% by weight of an oxidizing agent;
from about 0.1% to about 20.0% by weight of an anionic surfactant; and from about 0.05% to about 30.0% by weight of a stabilizing agent, all based on total weight of the disinfectant composition.
37.-39. (Cancelled) 40. The method of claim 36, wherein the method further comprises diluting the synergistic disinfectant composition before applying to the surface.
41. The method of claim 36 or 40, wherein the method fulfills at least one of the following:
(a) the method provides an antimicrobial activity of log reduction of at least 2, preferably at least 3, more preferably at least 4, under EPA standard applying the "Quantitative Methods for Evaluating the Activity of Microbicides used on Hard, Non-Porous Surface" issued by OECD;
(b) the method provides an antimicrobial activity of log reduction of at least 2, preferably at least 3, more preferably at least 4, under Biocidal Product Registration (BPR) standard EN13727, EN1276, EN13624, or EN1499.
42. The method of claim 36, 40 or 41, wherein the method fulfills at least one of the following:
(a) the method provides a synergistic antimicrobial activity against bacteria, yeast, fungi, spore, viruse, or any combination thereof;
(b) the method provides a synergistic antimicrobial activity against Staphylococcus aureus, Mycobacterium smegmatis, Candida albicans, Mycobacterium bovis, Trychophyton interdigitale, M. tuberculosis, or any combination thereof.
43. The method of claim 36 or 40-42, wherein the synergistic disinfectant composition fulfills at least one of the following:
(a) the synergistic disinfectant composition has substantially the same antimicrobial activity after at least one month at 40 °C storage, (b) the synergistic disinfectant composition has substantially the same antimicrobial activity after at least 3 months at 40 °C storage.
44. The method of any one of claims 36 or 40-43, wherein the amino acid based surfactant in the synergistic disinfectant composition fulfills at least one of the following:
(a) the amino acid based surfactant comprises a C10-24 fatty acid derivative of an amino acid, preferably the amino acid comprises glycine, lysine, sarcosine, glutamic acid, aspartic acid, aminomalonic acid, or any combination thereof, (b) the amino acid based surfactant comprises a sarcosinate salt of C8-18 fatty acid, a glycinate salt of C8-18 fatty acid, or any combination thereof, (c) the amino acid based surfactant comprises sodium lauroyl sarcosinate, sodium lauroyl glycinate, or a combination thereof, (d) the amino acid based surfactant is present in an amount of from about 0.2% to about 3.0% by weight based on total weight of the composition.
45. The method of any one of claims 36 or 40-44, wherein the synergistic disinfectant composition fulfills at least one of the following:
(i) the disinfectant composition comprises two or more types of the C1-8 organic acids, (ii) the disinfectant composition comprises two or more types of the C1-8 organic acids with at least one of the C1-8 organic acids is alpha hydroxyl acid, (iii) the disinfectant composition comprises from about 0.5% to about 15.0%
by weight of the C1-8 organic acid based on total weight of the composition, 46. The method of any one of claims 36 or 40-45, wherein the C1-8 organic acid in the synergistic disinfectant composition fulfills at least one of the following:
(a) the C1-8 organic acid comprises an alpha hydroxy carboxylic acid, (b) the C1-8 organic acid comprises from about 0.05% to about 15.0% by weight of the alpha hydroxy acid based on total weight of the composition, (c) the C1-8 organic acid comprises formic acid, acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, isovaleric acid, caproic acid, heptanoic acid, benzoic acid, salicylic acid, caprylic acid, lactic acid, glycolic acid, citric acid, or any combination thereof.
47. The method of claim 45 or 46, wherein the alpha hydroxy acid comprises lactic acid, glycolic acid, citric acid, malic acid, mandelic acid, tartaric acid, or any combination thereof.
48. The method of any one of claims 36 or 40-47, wherein the anionic surfactant in the synergistic disinfectant composition fulfills at least one of the following:
(a) the anionic surfactant comprises an alkyl sulfate, an alkyl ether sulfate, an alkyl aryl sulfonate, an alpha-olefin sulfonate, an alkali metal or ammonium salt of alkyl sulfate, an alkali metal or ammonium salt of alkyl ether sulfate, an alkyl phosphate, a silicone phosphate, an alkyl glyceryl sulfonate, an alkyl sulfosuccinate, an alkyl taurate, an acyl taurate, a sulfoacetate, an alkyl phosphate ester, a mono alkyl succinate, a monoalkyl maleate, a sulfoacetate, an acyl isethionate, an alkyl carboxylate, a phosphate ester, a sulfosuccinates, or any combination thereof, (b) the anionic surfactant comprises an alkyl sulfate, an alkyl ether sulfate, or a combination thereof, (c) the anionic surfactant is present in an amount from about 0.2% to about 10.0% by weight based on total weight of the composition, (d) the anionic surfactant is present in an amount from about 0.2% to about 3.0% by weight based on total weight of the composition.
49. The method of any one of claims 36 or 40-48, wherein the oxidizing agent in the synergistic disinfectant composition fulfills at least one of the following:
(i) the oxidizing agent comprises hydrogen peroxide;
(ii) the oxidizing agent is present in an amount of from about 0.5% to about 1.5% by weight based on total weight of the composition.
50. The method of any one of claims 36 or 40-49, wherein the the stabilizing agent in the synergistic disinfectant composition fulfills at least one of the following:
(i) the stabilizing agent comprises a C1-6 alcohol, glycerol, polyol, glycol ether, or any combination thereof, (ii) the stabilizing agent is present in an amount of from about 0.05% to about 20.0% by weight of the stabilizing agent based on total weight of the composition, (iii) the stabilizing agent is present in an amount of from about 1.0% to about 6.0% by weight of the stabilizing agent based on total weight of the composition.
51. The method of any one of claims 36 or 40-50, wherein the synergistic disinfectant composition fulfills at least one of the following:
(a) the disinfectant composition has a pH of 5 or less, preferably from about 2.0 to about 3.0;
(b) the disinfectant composition further comprises a pH adjusting agent, a buffering agent, a nonionic surfactant, a hydrotrope, a corrosion inhibitor, a sequestering agent, an antimicrobial compound, a dye, a rheology modifier, a preservative, or any combination thereof.
52. The method of any one of claims 36 or 40-51, wherein the synergistic disinfectant composition consists of, all based on total weight of the disinfectant composition:
from about 0.1% to about 25.0% by weight of the C1-8 organic acid;
from about 0.1% to about 20.0% by weight of the amino acid based surfactant;
at least 0.1% but less than 5.0% by weight of the oxidizing agent;
from about 0.1% to about 20.0% by weight of the anionic surfactant;
from about 0.05% to about 30.0% by weight of the stabilizing agent; and at least one of a pH adjusting agent, a buffering agent, a nonionic surfactant, a hydrotrope, a corrosion inhibitor, a sequestering agent, an antimicrobial compound, a dye, a rheology modifier, a preservative, or any combination thereof.
53. The method of any one of claims 36 or 41-52, wherein the method further comprises embedding the synergistic disinfectant composition in a textile medium to provide a disinfectant wipe, before applying the synergistic disinfectant composition to the surface.
1.-35. (Cancelled) 36. A method of disinfecting a surface, the method comprising:
applying a synergistic disinfectant composition to a surface selected from metal, ceramic, glass, hard plastic, stainless steel, wood or combinations thereof, or to a surface selected from woven fabric, non-woven fabric, filter media, hospital or surgical linen, hospital or surgical garment, soft-surface medical instrument, soft-surface surgical instrument, soft-surface packaging, paper, fiber, soft plastics, elastomer, food, or combinations thereof, wherein the synergistic disinfectant composition comprises:
from about 0.1% to about 25.0% by weight of a C1-8 organic acid;
from about 0.1% to about 20.0% by weight of an amino acid based surfactant;
at least 0.1% but less than 5.0% by weight of an oxidizing agent;
from about 0.1% to about 20.0% by weight of an anionic surfactant; and from about 0.05% to about 30.0% by weight of a stabilizing agent, all based on total weight of the disinfectant composition.
37.-39. (Cancelled) 40. The method of claim 36, wherein the method further comprises diluting the synergistic disinfectant composition before applying to the surface.
41. The method of claim 36 or 40, wherein the method fulfills at least one of the following:
(a) the method provides an antimicrobial activity of log reduction of at least 2, preferably at least 3, more preferably at least 4, under EPA standard applying the "Quantitative Methods for Evaluating the Activity of Microbicides used on Hard, Non-Porous Surface" issued by OECD;
(b) the method provides an antimicrobial activity of log reduction of at least 2, preferably at least 3, more preferably at least 4, under Biocidal Product Registration (BPR) standard EN13727, EN1276, EN13624, or EN1499.
42. The method of claim 36, 40 or 41, wherein the method fulfills at least one of the following:
(a) the method provides a synergistic antimicrobial activity against bacteria, yeast, fungi, spore, viruse, or any combination thereof;
(b) the method provides a synergistic antimicrobial activity against Staphylococcus aureus, Mycobacterium smegmatis, Candida albicans, Mycobacterium bovis, Trychophyton interdigitale, M. tuberculosis, or any combination thereof.
43. The method of claim 36 or 40-42, wherein the synergistic disinfectant composition fulfills at least one of the following:
(a) the synergistic disinfectant composition has substantially the same antimicrobial activity after at least one month at 40 °C storage, (b) the synergistic disinfectant composition has substantially the same antimicrobial activity after at least 3 months at 40 °C storage.
44. The method of any one of claims 36 or 40-43, wherein the amino acid based surfactant in the synergistic disinfectant composition fulfills at least one of the following:
(a) the amino acid based surfactant comprises a C10-24 fatty acid derivative of an amino acid, preferably the amino acid comprises glycine, lysine, sarcosine, glutamic acid, aspartic acid, aminomalonic acid, or any combination thereof, (b) the amino acid based surfactant comprises a sarcosinate salt of C8-18 fatty acid, a glycinate salt of C8-18 fatty acid, or any combination thereof, (c) the amino acid based surfactant comprises sodium lauroyl sarcosinate, sodium lauroyl glycinate, or a combination thereof, (d) the amino acid based surfactant is present in an amount of from about 0.2% to about 3.0% by weight based on total weight of the composition.
45. The method of any one of claims 36 or 40-44, wherein the synergistic disinfectant composition fulfills at least one of the following:
(i) the disinfectant composition comprises two or more types of the C1-8 organic acids, (ii) the disinfectant composition comprises two or more types of the C1-8 organic acids with at least one of the C1-8 organic acids is alpha hydroxyl acid, (iii) the disinfectant composition comprises from about 0.5% to about 15.0%
by weight of the C1-8 organic acid based on total weight of the composition, 46. The method of any one of claims 36 or 40-45, wherein the C1-8 organic acid in the synergistic disinfectant composition fulfills at least one of the following:
(a) the C1-8 organic acid comprises an alpha hydroxy carboxylic acid, (b) the C1-8 organic acid comprises from about 0.05% to about 15.0% by weight of the alpha hydroxy acid based on total weight of the composition, (c) the C1-8 organic acid comprises formic acid, acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, isovaleric acid, caproic acid, heptanoic acid, benzoic acid, salicylic acid, caprylic acid, lactic acid, glycolic acid, citric acid, or any combination thereof.
47. The method of claim 45 or 46, wherein the alpha hydroxy acid comprises lactic acid, glycolic acid, citric acid, malic acid, mandelic acid, tartaric acid, or any combination thereof.
48. The method of any one of claims 36 or 40-47, wherein the anionic surfactant in the synergistic disinfectant composition fulfills at least one of the following:
(a) the anionic surfactant comprises an alkyl sulfate, an alkyl ether sulfate, an alkyl aryl sulfonate, an alpha-olefin sulfonate, an alkali metal or ammonium salt of alkyl sulfate, an alkali metal or ammonium salt of alkyl ether sulfate, an alkyl phosphate, a silicone phosphate, an alkyl glyceryl sulfonate, an alkyl sulfosuccinate, an alkyl taurate, an acyl taurate, a sulfoacetate, an alkyl phosphate ester, a mono alkyl succinate, a monoalkyl maleate, a sulfoacetate, an acyl isethionate, an alkyl carboxylate, a phosphate ester, a sulfosuccinates, or any combination thereof, (b) the anionic surfactant comprises an alkyl sulfate, an alkyl ether sulfate, or a combination thereof, (c) the anionic surfactant is present in an amount from about 0.2% to about 10.0% by weight based on total weight of the composition, (d) the anionic surfactant is present in an amount from about 0.2% to about 3.0% by weight based on total weight of the composition.
49. The method of any one of claims 36 or 40-48, wherein the oxidizing agent in the synergistic disinfectant composition fulfills at least one of the following:
(i) the oxidizing agent comprises hydrogen peroxide;
(ii) the oxidizing agent is present in an amount of from about 0.5% to about 1.5% by weight based on total weight of the composition.
50. The method of any one of claims 36 or 40-49, wherein the the stabilizing agent in the synergistic disinfectant composition fulfills at least one of the following:
(i) the stabilizing agent comprises a C1-6 alcohol, glycerol, polyol, glycol ether, or any combination thereof, (ii) the stabilizing agent is present in an amount of from about 0.05% to about 20.0% by weight of the stabilizing agent based on total weight of the composition, (iii) the stabilizing agent is present in an amount of from about 1.0% to about 6.0% by weight of the stabilizing agent based on total weight of the composition.
51. The method of any one of claims 36 or 40-50, wherein the synergistic disinfectant composition fulfills at least one of the following:
(a) the disinfectant composition has a pH of 5 or less, preferably from about 2.0 to about 3.0;
(b) the disinfectant composition further comprises a pH adjusting agent, a buffering agent, a nonionic surfactant, a hydrotrope, a corrosion inhibitor, a sequestering agent, an antimicrobial compound, a dye, a rheology modifier, a preservative, or any combination thereof.
52. The method of any one of claims 36 or 40-51, wherein the synergistic disinfectant composition consists of, all based on total weight of the disinfectant composition:
from about 0.1% to about 25.0% by weight of the C1-8 organic acid;
from about 0.1% to about 20.0% by weight of the amino acid based surfactant;
at least 0.1% but less than 5.0% by weight of the oxidizing agent;
from about 0.1% to about 20.0% by weight of the anionic surfactant;
from about 0.05% to about 30.0% by weight of the stabilizing agent; and at least one of a pH adjusting agent, a buffering agent, a nonionic surfactant, a hydrotrope, a corrosion inhibitor, a sequestering agent, an antimicrobial compound, a dye, a rheology modifier, a preservative, or any combination thereof.
53. The method of any one of claims 36 or 41-52, wherein the method further comprises embedding the synergistic disinfectant composition in a textile medium to provide a disinfectant wipe, before applying the synergistic disinfectant composition to the surface.
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2019
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- 2019-12-13 WO PCT/US2019/066283 patent/WO2020139586A1/en active Application Filing
- 2019-12-13 BR BR112021012637-6A patent/BR112021012637A2/en unknown
- 2019-12-13 AU AU2019417293A patent/AU2019417293A1/en active Pending
- 2019-12-13 CA CA3081597A patent/CA3081597A1/en active Pending
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2021
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2022
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CN113271774A (en) | 2021-08-17 |
US11758906B2 (en) | 2023-09-19 |
BR112021012637A2 (en) | 2021-09-08 |
ZA202102702B (en) | 2023-10-25 |
EP4151093A1 (en) | 2023-03-22 |
CN113271774B (en) | 2024-01-12 |
US11330819B2 (en) | 2022-05-17 |
EP3691449A1 (en) | 2020-08-12 |
WO2020139586A1 (en) | 2020-07-02 |
US20230082677A1 (en) | 2023-03-16 |
AU2019417293A1 (en) | 2021-05-20 |
US11871744B2 (en) | 2024-01-16 |
US20200345005A1 (en) | 2020-11-05 |
US20220225614A1 (en) | 2022-07-21 |
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